Question

A bullet of 10g strikes a sand bag at a speed of 100 m/s and gets embedded after travelling

5 cm inside the bag.Calculate the resistive force exerted by the sand on the bullet and the time
taken by the bullet to come to rest.with calculation ​

Answer 1

-1000 N

Step-by-step explanation:

First calculate the acceleration:

v² = v₀² + 2a(x - x₀)

(0 m/s)² = (100 m/s)² + 2a (0.05 m)

a = -100,000 m/s²

Now calculate the force:

F = ma

F = (0.010 kg) (-100,000 m/s²)

F = -1000 N