nena4167
nena4167 nena4167
  • 25-10-2019
  • Physics
contestada

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

Respuesta :

skyluke89
skyluke89 skyluke89
  • 06-11-2019

Answer:

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:

[tex]W=mg[/tex]

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,

[tex]g=9.8 m/s^2[/tex]

So, we can find the mass of the rock:

[tex]m=\frac{W}{g}=\frac{174}{9.8}=17.8 kg[/tex]

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