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Question 1: An object of 50 kg gets the speed of 10m/s in 5 second from zero velocity. Calculate the required force applied by engine of the car.

Answer»

Answer:

EXPLANATION:

F=ma

m=mass of object

a=acceleration produced by the object

Given,

FINAL velocity (v) =10m/s

Initial velocity (u)=0m/s (as the car START s from REST)

Time(t)=5s

Acceleration =v-u/t

10-0/5=2m/s²

Force=50×2=100N

FORCE=100N



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