A rigid ball of mass m strikes a rigid wall at 60୭ and gets reflected without loss of speed as shown in the figure below. The value of impulse imparted by the wall on the ball will be :
Answer & explanation
Correct answer: option 1
Impulse : |\(\vec{J}| = |\vec{P_2} - \vec{P_1}\)|
= 2 m v cos \(\theta\)
= mv