Question

1. determine the amount of gravitational potential energy for a 2 kg book on a shelf that is 3 m high. 6 j 58.86 j 19.62 j 49.05 j

Explanation:

Step1: Identify the formula

The formula for gravitational - potential energy is $U = mgh$, where $m$ is the mass, $g$ is the acceleration due to gravity ($g=9.81\ m/s^{2}$), and $h$ is the height.

Step2: Substitute the values

Given $m = 2\ kg$, $g = 9.81\ m/s^{2}$, and $h = 3\ m$. Then $U=2\times9.81\times3$.

Step3: Calculate the result

$U = 58.86\ J$.

Answer:

58.86 J