Question

Find the amount of energy (E) dissipated by friction by the time the block stops.

a) E = mgh
b) E = 2mgh
c) E = 0.5mgh
d) E = 3mgh

Answer 1

The amount of energy dissipated by friction can be determined using the equation E = 0.5mgh, where E is the amount of energy, m is the mass of the block, g is the acceleration due to gravity, and h is the height at which the block stops.

Step-by-step explanation:

The amount of energy dissipated by friction by the time the block stops can be determined using the equation E = 0.5mgh, where E is the amount of energy, m is the mass of the block, g is the acceleration due to gravity, and h is the height at which the block stops. Therefore, the correct answer is c) E = 0.5mgh.

For example, if the block has a mass of 0.123 kg and stops at a height of 1 m, the amount of energy dissipated by friction would be E = 0.5 * 0.123 * 9.8 * 1 = 0.60498 J.