1.

A force of 100N stops a body moving with a velocity of 20 m/s . The force required to stop the same body when moving 30 m/s in the same distance is

Answer»

f=ma

100 N=m×20

100N÷20=m

m=5kg

f=ma

f=(5×30)

f=150N

the FORCE REQUIRED is 150N



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