Answer :
A force of 186 N acts on a 7.3 kg bowling ball for 0.40 s. then the ball’s change in momentum is 74.4 Ns.
Momentum is defined as mass times velocity. it tells about the moment of the body. it is denoted by p and expressed in kg.m/s. mathematically it is written as p = mv. A body having zero velocity or zero mass has zero momentum. its dimensions is [M¹ L¹ T⁻¹]. Momentum is conserved throughout the motion. According to conservation law of momentum initial momentum is equal to final momentum.
Change in momentum with respect to time is force,
F = Δp/Δt
Hence change in momentum is equal to,
Δp=F ×Δt
Δp= 186 × 0.40
Δp= 74.4 Ns
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