Question

Question 16: Explain the Law of Inertiz D) A true starts from rest and roll down all with a constant acceleration it travels a distance of 400 min 20 s. Find its acceleration. Find the force acting on it fits mass is 7 tonnes (Hint: 1 tone = 10001​

Answer 1

Explanation:

Given data:Mass of stone(m)=7000 kgDistance(S)=400 meterTime(t)=20 second1) We have to find the acceleration of the truckSo from the equation of motion S=ut+ 2/1 a×t ²

, whereu=0

S= 2/1a×t ²

a= t²/ 2×S = 20×20/2×400 =2 m/s²

2) Force acting on truckSo,from newton's 2 nd law of motion

F =ma=7000×2=14000N=14kN

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