Multiple Choice
FIGURE 8-1
-You need to load a crate of mass m onto the bed of a truck. One possibility is to lift the crate straight up over a height h, equal to height of the truck's bed. The work done in this case is W1. The other possibility is to slide the crate up the frictionless ramp of length L as shown in Fig. 8-1. In this case you perform work W2. What statement is true?
A) W1 < W2
B) W1 = W2
C) W1 > W2
D) No simple relationship exists between W1 and W2.
Correct Answer:

Verified
Correct Answer:
Verified
Q12: An 8 kg object moving with an
Q26: Define efficiency for an engine. Is it
Q28: A 1500-kg car accelerates from 0 to
Q29: A car on a roller coaster starts
Q33: A particle is moving in three-dimensions and
Q34: A linear spring has a spring constant
Q36: An object with a mass of 10
Q83: Block 1 and block 2 have the
Q84: A lightweight object and a very heavy
Q88: The force acting on an object is