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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. |
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Answer» Answer: 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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