A bowling ball of mass 5 kg hits a wall going 7 m/s and rebounds at a speed of 2 m/s. What was the impulse applied to the bowling ball
Explanation :
Given that,
Mass of the ball, m = 5 kg
Initial velocity of the ball, u = 7 m/s
Final speed of the ball, v = 2 m/s
We know that the impulse applied to an object is equal to the change in momentum.
\(J=\Delta p\)
\(J=p_f-p_i\)
\(J=m(v-u)\)
\(J=5\ kg(2\ m/s-7\ m/s)\)
J = -25 kgm/s
Hence, this is the required solution.