what force can change the velocity of a body of mass 8kg from 20m/s to 30m/s in 2s
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m=8kg
u=20m/s
v=30m/s
t=2s
F=m(v-u)/t
= 8(30-20)/2
=8x5
=40N
step by step explanation
u=20m/s
v=30m/s
t=2s
F=m(v-u)/t
= 8(30-20)/2
=8x5
=40N
step by step explanation
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