Question

(4) Constant
A body of mass 2 kg moves with acceleration 3 ms-2. The change in momentum in one second is
(1)2/3 kg ms-1
(2)3/2kg ms-1
(3) 6 kg ms-1
(4) None of these
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Answer 1

Answer:

option 3-- 6 kg m/s

Explanation:

as given

m=2 kg

a=3 m/s square

by applying newtons first equation of motion i. e

v=u +at

v=0 +3×1

v=3 m/s

but u r looking for the change in momentum here it is

p=mv

p=2×3

p= 6 kg m/s..

that's the answer