Question

A truck starts from rest and rolls down a hill with a constant acceleration it travels a distance of 400m in 20s find it's acceleration find the force acting on it if it's mass is 7 tones (hint 1 tonne =1000kg


Answer pls ​

Answer 1

Answer:

Initial velocity, u = 0

Distance travelled, s = 400 m

Time taken, t = 20 s

We know, s = ut + ½ at2

Or, 400 = 0 + ½ a (20)2

Or, a = 2 ms€“2

Now, m = 7 MT = 7000 kg, a = 2 ms€“2

Or, F = ma = 7000 — 2 = 14000 N Ans.