Question

a boulder sitting on a 45 m tall cliff has a potential energy of 7,100 J. the acceleration due to gravity is 9.8 m/s^2. what is the mass of the boulder

Answer 1

The mass of the boulder is equal to 16.10 kilograms.

Given the following data:

• Height of cliff = 45 m

• Potential energy = 7,100 Joules

• Acceleration due to gravity = 9.8 $m/s^2$

To determine the mass of the boulder:

Mathematically, potential energy (P.E) is calculated by using the following formula:

$P.E = mgh$

Where:

• m is the mass of object.

• g is the acceleration due to gravity.

• h is the height of an object.

Making m the subject of formula, we have:

$m = \frac{P.E}{gh}$

Substituting the given parameters into the formula, we have;

$m=\frac{7100}{9.8 \times 45} \\\\m=\frac{7100}{441}$

Mass, m = 16.10 kg

Read more on potential energy here: brainly.com/question/8664733