Question : A body of mass 𝑚 is projected at an angle of 45° with the horizontal. If air resistance is negligible, then total change in momentum when it strikes the ground is
(A) 2𝑚v
(B) \sqrt{2}mv
(C) 𝑚𝑣
(D) \dfrac{mv}{\sqrt{2}}
Answer : option (B)
Solution :
