Solution Found!
Suppose the pendulum bob in Figure has a mass of 0.25 kg.
Chapter 8, Problem 74GP(choose chapter or problem)
Suppose the pendulum bob in Figure 8–20 has a mass of 0.25 kg. (a) How much work does gravity do on the bob as it moves from point A to point B? (b) From point B to point A? (c) How much work does the string do on the bob as it moves from point A to point B? (d) From point B to point A?
Questions & Answers
QUESTION:
Suppose the pendulum bob in Figure 8–20 has a mass of 0.25 kg. (a) How much work does gravity do on the bob as it moves from point A to point B? (b) From point B to point A? (c) How much work does the string do on the bob as it moves from point A to point B? (d) From point B to point A?
ANSWER:
Step 1 of 7
Part (a)
Consider a pendulum bob moves from the point A to B. We are going to find the work done by gravity on the bob.
The mass of the bob m = 0.25 kg
The length of the string L = 1.2 m
The angle between the two points
The acceleration due to gravity
