Question

A truck starts from rest and rolls down a hill with a constant acceleration. It travells a distance of 400 min 20 sec. Find it's acceleration

Answer 1

Your question is wrong

Answer 2

Answer:

The truck starts from the rest ,so intial velocity=0

Distance traveled=400m

Time taken=20 sec

We know the equation of motion,S=ut+1/2 at 2

400= 0+1/2 a* (20) 2

a= m/s 2

Now,mass = 7 metric tones

=7 * 1000

= 7000kg

So force= mass* acceleration

F = 7000 * 2

= 14000 N