Momentum

Q. A body of mas m is thrown at an angle to the horizontal with an initial velocity vo. Assuming air drag to be negligible,

momentum increment lΔpl that the body acquires during the tth second of its motion is
(A) mg/4 (B) mg/3 (C) mg/2 (D) mg

3 Answers

1
Philip Calvert ·

answer is D

106
Asish Mahapatra ·

pls explain phillip

24
eureka123 ·

Since air drag is negligible=> horz velcoity will be same

only change in vertical momentum

vi=vsinθ=>pi=mvsinθ

vf=vsinθ-gt=>pf=mvsinθ-mgt

l Δp l=pf-pi=mgt
at tth sec. l Δp l=mg

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