Question

A bus starts from rest and rolls down a hill with a constant acceleration . It travels a distance of 300m in 5sec . Find its acceleration . Find the force acting on it if it's mass is 8kg

Answer 1

Explanation:

See use here equation of motion, because it is given in question that acceleration is constant.....

S= ut +1/2 at²

S=300m , u=0(initial velocity, because bus start from rest given in question)…

t=5sec so.....

By putting all the values you get acceleratin as 24m/s² (i hope you can do the calculation part)

Force = mass × acceleration

= 8kg× 24m/s² = 192 Newton...

I hope it will help...physics is game of formula and concept, memorize formula along with concept and you win the battle..

For any query feel free to ask......