A 73 kg person is riding in a car moving at 20 m/s when the car runs into a bridge abutment. Calculate the magnitude of the average force (in Newtons) on the person if he is stopped by a padded dashboard that compresses an average distance of 0.16 m

The magnitude of average force

Explanation:

Given :

Mass of person Kg

Initial velocity of car  

Average distance m

According to the second law of newton.

From the kinematic equations,

Where initial velocity, in our case final velocity is zero ()

So average force is given by,

N

But magnitude of average force is,

N

e

explanation:

there is no change in the electric potential energy as it is in rest on both conditions.