Due Oct 11, 2019 at 11:59pm Points 30 Questions 30
Available Oct 10, 2019 at 9pm - Oct 12, 2019 at 8am 1 day Time Limit 120 Minutes
This quiz was locked Oct 12, 2019 at 8am.
A empt History
Attempt Time Score
LATEST Attempt 1 45 minutes 25 out of 30
Correct answers are no longer available.
Score for this quiz: 25 out of 30
Submitted Oct 11, 2019 at 4:40pm
This attempt took 45 minutes.
Incorrect Question 1 pts
A woman weighing 6.0 × 102 N is riding an elevator from the 1st to the 6thfloor. As the elevator approaches
the 6th floor, it decreases its upward speed from 8.0 to 2.0 m/s in 3.0 s. What is the average force exerted
by the elevator floor on the woman during this 3.0-s interval?
, 720 N
480 N
1200 N
600 N
120 N
Question 2 pts
The diagram below depicts a hockey puck moving across a horizontal, frictionless surface in the direction of
the dashed arrow. A constant force , shown in the diagram, is acting on the puck. For the puck to
experience a net force in the direction of the dashed arrow, another force must be applied in which of the
directions 1-5 below?
,Direction 1
Direction 2
Direction 3
Direction 4
Direction 5
, Question 3 pts
The figure below depicts the paths of two colliding steel balls, A and B. Which set of arrows best represents
the direction of the change in momentum of each ball?
Set 1
Set 2
Set 3
Set 4
Set 5