Question

A 3 * 10 to the power -3 kg copper penny drops a distance of 50 m to the ground. if 65 percent of the initial potentia energy goes into increasing the internal energy of the penny, determine the megnitude of that increase.

can some genius explain this to me please?

Answer 1

Step-by-step explanation:

The magnitude of the increase is 0.9555J

Explanation

Potential Energy (PE) = mgh mass(m) = 3 * 10 ^ - 3 * kg

, acceleration due to gravity (g) = 9.8m / (s ^ 2) distance(h) = 50m PE = 3 * 10 ^ - 3 * 9.8 * 50 = 1.47J Increase in internal energy = 65% of 1.47J = 0.65 × 1.47J

= 0.9555J