PHYS STRAIGHTERLINE EXAM (ACTUAL
EXAM) WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS LATEST 2025 –2026
ALREADY GRADED A+
Two children are playing catch in a passenger train. An observer on the
ground measures that the train is traveling at 70 mph. As the train passes the
observer, he measures that the ball is thrown with half of the speed as the
passenger train. What velocity do the children measure for the ball? (Assume
the positive direction is the direction in which the train is moving.) -
ANSWERS-−35 mph
How fast must a baseball move as it leaves your hand if it reaches a
maximum height of 15.0 m above the point where it left your hand? -
ANSWERS-17.1 m / s
,A truck that weighs 1000 N moves at 5.89 m / s when it hits another vehicle
in an elastic collision. The second vehicle, weighing 981 N, was stationary but
free to move. Find the final velocity of the second vehicle after the collision. -
ANSWERS-v2 f = 5.95 m / s
A binary star system consists of two identical stars moving in circular orbits
around the system's center of mass (see the diagram). The mass of each star
is M and the radius of the orbit is R. Which expression correctly gives the
orbital speed for one of the stars? - ANSWERS-(GM/4R)1/2
Consider a spring that is stretched from its equilibrium position x0, where x0
= 0, to a position x, where x is positive. Which of the following describes why
the work done by a spring is negative? - ANSWERS-All of the choices are
correct.
When designing elevators, it is important to consider the maximum tension a
cable will support. Which of the following causes a maximum tension? -
ANSWERS-accelerating upward
Suppose you weigh an object and the reading you get from the scale is 0.0070
kg. How many significant digits does your measurement have? - ANSWERS-
Two
Consider two objects sliding down an incline without rolling. If the objects
don't have the same mass, the heavier object will accelerate at a faster rate
than the lighter one. - ANSWERS-false
Which of the following statements concerning friction between the surfaces
of two objects is correct? - ANSWERS-The force of friction mostly depends on
the nature of the two surfaces.
,Calculate x=vt+1/2at2, where v = 0.227 m/s. t = 11.1s, and a = 9.80 m/s2. -
ANSWERS-606 m
Which of the following statements concerning friction is incorrect? -
ANSWERS-The force of static friction ( fs ) between parallel surfaces in contact
is given by: fs = μsN.
A car travels with a speed of 3.5 m / s, and then accelerates to 5.5 m / s in 4 s.
Which of the following is the average acceleration of the car? - ANSWERS-0.5
m / s2
If the cross product of a vector of length 5 and a vector of length 3 results in a
vector of length 10, what is the angle between them? - ANSWERS-42°
An amusement park game consists of throwing a quarter into a small bowl. If
you win, you get to take home a giant purple stuffed elephant. The dish is on
a shelf that is 0.4 m above the point where the quarter leaves your hand. The
horizontal distance between the bowl and the place where the quarter leaves
your hand is 1.8 m. Ignoring air drag, if you toss the quarter at an angle of
60°, what initial velocity is needed to bring home the giant purple stuffed
elephant? - ANSWERS-4.8 m / s
If the x-component of a vector is 3 and the y-component is 4, what is the
magnitude of the vector? - ANSWERS-5
Which of the following is involved in uniform circular motion? - ANSWERS-
constant angular velocity
, As shown, a crate of oranges and a crate of apples, each with a different
mass, are attached by a rope (with tension Toa). A second rope (To ) is
attached to the crate of oranges, and the entire system is pulled with a
constant acceleration a by this rope. Which of the following is true of the
tensions? - ANSWERS-Toa > To
How can you calculate the magnitude of a vector using scalar products? -
ANSWERS-Multiply it by itself and take the square root.
A vector is quantity that requires both magnitude and ________. - ANSWERS-
direction
King Kong is holding a woman on top of a skyscraper when she suddenly slips
out of his hand. How tall is the building if Superman has a minimum time of
2.30 s to catch the woman before she hits the ground? - ANSWERS-25.9 m
Kylie throws Kyra a kiwi. The kiwi leaves Kylie's hand at a height of 1.3 m
from the ground and Kyra grabs it out of the air at a height of 1.6 m. Kylie
throws the kiwi at an angle of 33° relative to the horizontal. The kiwi is in the
air for 1.1 s. How far apart are Kylie and Kyra standing? (Assume there is no
drag force that no wind is blowing.) - ANSWERS-9.6 m
A projectile is launched from a height of 250 m with initial horizontal velocity
of 50 m/s. What is the horizontal range of the projectile? - ANSWERS-357 m
Imagine that you push down on an object that is sitting on a frictionless table.
Which of the following diagrams includes all the forces acting on the object? -
ANSWERS-F W down, N up
EXAM) WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS LATEST 2025 –2026
ALREADY GRADED A+
Two children are playing catch in a passenger train. An observer on the
ground measures that the train is traveling at 70 mph. As the train passes the
observer, he measures that the ball is thrown with half of the speed as the
passenger train. What velocity do the children measure for the ball? (Assume
the positive direction is the direction in which the train is moving.) -
ANSWERS-−35 mph
How fast must a baseball move as it leaves your hand if it reaches a
maximum height of 15.0 m above the point where it left your hand? -
ANSWERS-17.1 m / s
,A truck that weighs 1000 N moves at 5.89 m / s when it hits another vehicle
in an elastic collision. The second vehicle, weighing 981 N, was stationary but
free to move. Find the final velocity of the second vehicle after the collision. -
ANSWERS-v2 f = 5.95 m / s
A binary star system consists of two identical stars moving in circular orbits
around the system's center of mass (see the diagram). The mass of each star
is M and the radius of the orbit is R. Which expression correctly gives the
orbital speed for one of the stars? - ANSWERS-(GM/4R)1/2
Consider a spring that is stretched from its equilibrium position x0, where x0
= 0, to a position x, where x is positive. Which of the following describes why
the work done by a spring is negative? - ANSWERS-All of the choices are
correct.
When designing elevators, it is important to consider the maximum tension a
cable will support. Which of the following causes a maximum tension? -
ANSWERS-accelerating upward
Suppose you weigh an object and the reading you get from the scale is 0.0070
kg. How many significant digits does your measurement have? - ANSWERS-
Two
Consider two objects sliding down an incline without rolling. If the objects
don't have the same mass, the heavier object will accelerate at a faster rate
than the lighter one. - ANSWERS-false
Which of the following statements concerning friction between the surfaces
of two objects is correct? - ANSWERS-The force of friction mostly depends on
the nature of the two surfaces.
,Calculate x=vt+1/2at2, where v = 0.227 m/s. t = 11.1s, and a = 9.80 m/s2. -
ANSWERS-606 m
Which of the following statements concerning friction is incorrect? -
ANSWERS-The force of static friction ( fs ) between parallel surfaces in contact
is given by: fs = μsN.
A car travels with a speed of 3.5 m / s, and then accelerates to 5.5 m / s in 4 s.
Which of the following is the average acceleration of the car? - ANSWERS-0.5
m / s2
If the cross product of a vector of length 5 and a vector of length 3 results in a
vector of length 10, what is the angle between them? - ANSWERS-42°
An amusement park game consists of throwing a quarter into a small bowl. If
you win, you get to take home a giant purple stuffed elephant. The dish is on
a shelf that is 0.4 m above the point where the quarter leaves your hand. The
horizontal distance between the bowl and the place where the quarter leaves
your hand is 1.8 m. Ignoring air drag, if you toss the quarter at an angle of
60°, what initial velocity is needed to bring home the giant purple stuffed
elephant? - ANSWERS-4.8 m / s
If the x-component of a vector is 3 and the y-component is 4, what is the
magnitude of the vector? - ANSWERS-5
Which of the following is involved in uniform circular motion? - ANSWERS-
constant angular velocity
, As shown, a crate of oranges and a crate of apples, each with a different
mass, are attached by a rope (with tension Toa). A second rope (To ) is
attached to the crate of oranges, and the entire system is pulled with a
constant acceleration a by this rope. Which of the following is true of the
tensions? - ANSWERS-Toa > To
How can you calculate the magnitude of a vector using scalar products? -
ANSWERS-Multiply it by itself and take the square root.
A vector is quantity that requires both magnitude and ________. - ANSWERS-
direction
King Kong is holding a woman on top of a skyscraper when she suddenly slips
out of his hand. How tall is the building if Superman has a minimum time of
2.30 s to catch the woman before she hits the ground? - ANSWERS-25.9 m
Kylie throws Kyra a kiwi. The kiwi leaves Kylie's hand at a height of 1.3 m
from the ground and Kyra grabs it out of the air at a height of 1.6 m. Kylie
throws the kiwi at an angle of 33° relative to the horizontal. The kiwi is in the
air for 1.1 s. How far apart are Kylie and Kyra standing? (Assume there is no
drag force that no wind is blowing.) - ANSWERS-9.6 m
A projectile is launched from a height of 250 m with initial horizontal velocity
of 50 m/s. What is the horizontal range of the projectile? - ANSWERS-357 m
Imagine that you push down on an object that is sitting on a frictionless table.
Which of the following diagrams includes all the forces acting on the object? -
ANSWERS-F W down, N up
