What is the mass of a falling rock if it hits the ground with a force of 174 newtons?

17.8 kg

Explanation:

The force with which the rock hits the ground is the force of gravity, which is also known as weight of the object, and whose magnitude is given by:

where

m is the mass of the object

g is the acceleration of gravity

In this problem, we know the weight of the rock

W = 174 N

We also know the acceleration of gravity,

So, we can find the mass of the rock:

a.

explanation: