Question

A ball is thrown up at an angle $45^{\circ }$ with the horizontal. Then the total change of momentum by the instant it returns to ground is :-

• A. zero
• B. $2mv$
• C. $\sqrt{2}mv$
• D. $\frac{mv}{\sqrt{2}}$

Answer 1

Answer: (C)

$\Delta P=2mu\sin \theta$