Question

A matchbox car with mass M rolls down a ramp, starting from rest. It takes a time T to roll a distance L on the ramp. What is the car’s acceleration down the ramp?

Answer 1

assuming linear acceleration.

avg velocity=L/T
but avg velocity= 1/2 Vf

Vf=2L/T

but Vf=at
2L/T=aT
solve for a

Answer 2

Thank you for your help!