Multiple Choice
Which of the following four objects has the greatest kinetic energy?
A) An object of mass m moving with speed 4v
B) An object of mass 3m moving with speed 2v
C) An object of mass 4m moving with speed v
D) An object of mass 2m moving with speed 3v
E) None of these; all four objects have the same kinetic energy.
Correct Answer:

Verified
Correct Answer:
Verified
Q31: Work in the amount of 280 J
Q32: Power is<br>A) the time rate of doing
Q33: Potential-energy values may be<br>A) positive only.<br>B) negative
Q34: If you lift a 15-N weight vertically
Q35: A force of 12 N acts on
Q37: With a constant braking force, the stopping
Q38: In pushing an object on a level
Q39: A negative potential energy may be made
Q40: A kilowatt-hour is a unit that measures<br>A)
Q41: The SI unit of power is the