- #1
MsTech
- 5
- 0
Homework Statement
A lorry of a mass 1500kg increases its velocity from 12m/s to 20m/s.
Homework Equations
a) calculate the change in momentum of the lorry.
b) The time taken for this change in velocity id 2 minutes. Calculate the average resultant force applied on the lorry.
The Attempt at a Solution
I worked out part a) by using the formula momentum= mv and got the ans 12000kgm/s
but i don't know how to work out part b.
Does anyone know how ?