Question

Earth starts from rest and Rolls down a hill with constant acceleration Travels a distance of 400 metres in 20 seconds find its acceleration find the force acting on it if its mass a 6000 kg

Answer 1

Answer:

we will find acceleration by this equation

s=ut+1/2at2

400=1/2a×400

a=2

if acceleration =2

then f=ma

f=6000×2

f=12000