Question-

A bullet, of mass 20g, traveling at 350 m/s, strikes a steel plate at an angle of 30degrees with the plane of the plate. it ricochets off at the same angle, at a speed of of 320 m/s. What is the magnitude of the impulse that the wall gives to the bullet?

a) 300 Ns

b) 0.3 Ns

c) 0.52 Ns

d) 6.7 Ns