A car carrying a 71 kg test dummy crashed into a wall at 24m/s and is brought to rest in .10s. What is the magnitude of the average force exerted by the seat belt on the dummy

The answer for the following problem is mentioned below.

Explanation:

Given:

mass of the dummy (m) = 71 kg

velocity of the dummy (v) = 24 m/s

time (t) = 10 seconds

To solve:

Average force exerted (F)

We know;

To calculate the average force;

According to the formula;

F = (m × v) ÷ t

Where;

F represents the force exerted

m represents the mass of the dummy

v represents the velocity

t represents the time

F =

F =

F =

F = 170.4 N

Therefore the force exerted by the seat belt on the dummy is 170.4 N  

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y