A book with a mass of 1.53 kg is lifted from the ground to a height of 4.0 meters. The increase in the book’s gravitational potential energy is approximately
a. 64 J
b. 60. J
c. 599 J
d. 64 J
e. Others _____
Which quantity is not a vector?
a. Momentum
b. Impulse
c. Acceleration
d. Force
e. Mass
40. joules of work is required to push a 2.0-kilogram box up the full length of a ramp that is 8.0 meters long. What is the magnitude of the force applied to the box to do this work?
a. 20. N
b. 5.0 N
c. 25 N
d. 80. N
e. Others ______
