Multiple Choice
Which of the following statements is true?
A) Friction is a conservative force and does negative work.
B) Potential energy may be defined by the equation U(x) = -dF(x) /dx
C) The work done by a conservative force between two points depends on the path taken between those points.
D) A conservative force cannot change a body's total energy.
E) The work done by a conservative force while a body moves at constant velocity must be zero.
Correct Answer:

Verified
Correct Answer:
Verified
Q29: A 5-kg blob of putty is dropped
Q30: Assuming the incline to be frictionless and
Q31: The rest mass of a proton
Q32: A projectile of mass m is propelled
Q33: What is the speed of the object
Q35: A proton has a rest mass
Q36: In magazine car tests an important indicator
Q37: A mass m is released from
Q38: Which of the following are units of
Q39: The rest mass of an electron