PHY 250 FINAL EXAM 2026-2027
QUESTIONS AND CORRECT ANSWERS
GRADED A+
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?
Select one:
a. 1.4 m / s2
b. 0.5 m / s2
c. −0.5 m / s2
d. −1.4 m / s2
b. 0.5 m / s2
Which of the following is an example of scalar product?
Select one:
a. 𝐴⋅𝐵
b. 𝐴→+𝐵→
c. 𝐴→×𝐵→
d. 𝐴→⋅𝐵→
d. 𝐴→⋅𝐵→
,Omar has never really been comfortable with the Earth's acceleration of gravity,
and has decided to build himself a space station which can simulate, through
uniform circular motion, an acceleration of 16 m/s2. In order to accomplish this,
the ratio v/R must be equal to which of the following?
Select one:
a. 16 s-1
b. 8 s-1
c. 4 s-1
d. 2 s-1
c. 4 s-1
In a traffic accident, two motorcycles, A and B, collide with each other. Their total
masses are 180 kg and 134 kg. If the more massive one experiences an acceleration
of 50 m / s2, what is the acceleration of the other motorcycle?
Select one:
a. 0.01 m / s2
b. 67 m / s2
c. 37 m / s2
d. 55 m / s2
b. 67 m / s2
A 100 N object sits on a table and is tugged forwards and backwards by forces F1
= 1000 N and F2 = 1500 N, as shown. (Note that the vectors are not drawn to
scale.) There are no other forces acting on the object. What is the magnitude of the
normal force, FN ?
,Select one:
a. 1000 N
b. 100 N
c. 1500 N
d. 400 N
b. 100 N
A man throws a rock off the edge of a cliff at a 30° angle and initial total velocity
of 10 m / s. When the rock leaves his hand, it is 35 meters above the ground. How
far from the edge of the cliff will the rock land?
Select one:
a. 4.4 m
b. 8.8 m
c. 19.1 m
d. 27.8 m
d. 27.8 m
The pilot of an airplane wishes to fly due north, but a strong wind is blowing
toward the east. Which direction must the plane head in order to fly due north?
Select one:
a. northeast
b. northwest
c. southeast
, d. southwest
b. northwest
Which of the following is not a frictional force between solids?
Select one:
a. static friction
b. kinetic friction
c. viscosity
d. rolling friction
c. viscosity
The normal force exerted on a book placed upright on a table is 47 N. If the book is
then placed in its side on the table, what is the mass of the book?
Select one:
a. 7.4 kg
b. 3.5 kg
c. 9.8 kg
d. 4.8 kg
e. None of the above
d. 4.8 kg
QUESTIONS AND CORRECT ANSWERS
GRADED A+
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?
Select one:
a. 1.4 m / s2
b. 0.5 m / s2
c. −0.5 m / s2
d. −1.4 m / s2
b. 0.5 m / s2
Which of the following is an example of scalar product?
Select one:
a. 𝐴⋅𝐵
b. 𝐴→+𝐵→
c. 𝐴→×𝐵→
d. 𝐴→⋅𝐵→
d. 𝐴→⋅𝐵→
,Omar has never really been comfortable with the Earth's acceleration of gravity,
and has decided to build himself a space station which can simulate, through
uniform circular motion, an acceleration of 16 m/s2. In order to accomplish this,
the ratio v/R must be equal to which of the following?
Select one:
a. 16 s-1
b. 8 s-1
c. 4 s-1
d. 2 s-1
c. 4 s-1
In a traffic accident, two motorcycles, A and B, collide with each other. Their total
masses are 180 kg and 134 kg. If the more massive one experiences an acceleration
of 50 m / s2, what is the acceleration of the other motorcycle?
Select one:
a. 0.01 m / s2
b. 67 m / s2
c. 37 m / s2
d. 55 m / s2
b. 67 m / s2
A 100 N object sits on a table and is tugged forwards and backwards by forces F1
= 1000 N and F2 = 1500 N, as shown. (Note that the vectors are not drawn to
scale.) There are no other forces acting on the object. What is the magnitude of the
normal force, FN ?
,Select one:
a. 1000 N
b. 100 N
c. 1500 N
d. 400 N
b. 100 N
A man throws a rock off the edge of a cliff at a 30° angle and initial total velocity
of 10 m / s. When the rock leaves his hand, it is 35 meters above the ground. How
far from the edge of the cliff will the rock land?
Select one:
a. 4.4 m
b. 8.8 m
c. 19.1 m
d. 27.8 m
d. 27.8 m
The pilot of an airplane wishes to fly due north, but a strong wind is blowing
toward the east. Which direction must the plane head in order to fly due north?
Select one:
a. northeast
b. northwest
c. southeast
, d. southwest
b. northwest
Which of the following is not a frictional force between solids?
Select one:
a. static friction
b. kinetic friction
c. viscosity
d. rolling friction
c. viscosity
The normal force exerted on a book placed upright on a table is 47 N. If the book is
then placed in its side on the table, what is the mass of the book?
Select one:
a. 7.4 kg
b. 3.5 kg
c. 9.8 kg
d. 4.8 kg
e. None of the above
d. 4.8 kg
