Question

i don't know physics much can you tell me how to solve this question A truck starts from rest and rolls down a hill with a constant acceleration. It travels a distance of 400 m in 20 s. Find its acceleration. Find the force acting on it if its mass is 7 tonnes (Hint: 1 tonne = 1000 kg.)​

Answer 1

Answer:

1 tonne = 1000kg

m= 7000kg [ 7 tonnes ]

s=400 meter

t=20 second

The acceleration of the truck:-

So from the equation of motion S=ut+ 1/2 a*t 2

a= 2 * S = 2 * 400    2 meter /sec2

     t2         20*20  

 F  =ma=7000×2=14000N=14kN

Please mark me as a brainliest...

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