The velocity
of a ball
of mass 100g
changes from 20 m/s in time 2 sec
Find the change in momentum
and hence the force
acting
on the ball
Answers
Answered by
0
Answer:
2. 5
Step-by-step explanation:
hundreds of mass must me divided by 20 m / s and then divide by 2 sec
Answered by
1
Answer:
answer -
Step-by-step explanation:
retardation a is calculated by using the formula
v = u - a×t with final speed v = 0 ;
a = v/t = 20/0.02 = 1000 m/s²
force exerted on the ball = mass x retardation = 100 × 10 ³ x 1000 = 100 N
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