Question

A bullet of mass 20 g and with the velocity of 150ms-1 moving horizontally strikes a wooden material and comes to rest in 0.02s. calculate the magnitude of the force exerted by the wooden material on the bullet.

Answer 1

acceleration= 150/0.02m/s^-2
a= 7500m/s^-2
F=m×a=20×7500=15,000,0
F=1.5×10^5 Newton

Answer 2

Answer:

Explanation:V=u+at 0=150+a×0.02;0=150+0.02a -0.02a=150;a=-150/0.02 a=-7500m/s^2 Mass of bullet=20g=0.02kg Force=mass/acceleration

=0.02×-7500

=-150 Newton