7
lesson pretestMultiple Choice

Pretest

Question 7 • Physics I

A force of 75 cap n at an angle of 15 degrees to the direction of motion moves a chair 3 m Which change would result in more work being done on the chair?

Answer
A
increasing the angle to 20 degrees
B
decreasing the angle to 10 degrees
C
moving the chair 2 m
D
using 60 cap n of force
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