- Messages
- 162
- Reaction score
- 249
- Points
- 53
u=2.5m/s v=1.5m/s s=4m use v^2=u^2+2as v^2-u^2/2s=a=(1.5)^2-(2.5)^2/8=a=-1/2m/s^2how to find value of alpha??
ii) apply newtons 2nd law sum of force in direction of motion-the sum of forces in opposite to motion=mass*acceleration
-mgsinѲ=ma
-m(10sinѲ)=-1/2m
10sinѲ=1/2
sinѲ=1/20