Question

A 4900 n gear box with a mass of 500kg falls to the ground. What is it’s acceleration due to gravity?

Answer 1

Answer:

$9.8 m/s^2$, towards the ground

Explanation:

For an object in free fall, the only force acting on it is the force of gravity. We can write it as

$F=mg$

where

F is called weight of the object

m is the mass of the object

g is the acceleration due to gravity

We can re-arrange the equation as

$g=\frac{F}{m}$

For the box in the problem, we know:

F = 4900 N

m = 500 kg

Therefore, we can find the value of g:

$g=\frac{4900}{500}=9.8 m/s^2$

And the direction is the same as the force of gravity (downward).