- #1
PhysicS FAN
- 26
- 4
- Homework Statement
- In the elastic collision (of the image) the sphere has a mass m=1kg and the angles that the object meets and leaves the wall are 60deegres. The time duration of the impact is Δt=0,01 sec and the velocity at which the sphere is moving is u=10√3 m/s. Assume √3= 1,73.
1. What is the change of the momentum
2. What is the force of the wall
- Relevant Equations
- ΔΚ= W, P=mu
The speed of the sphere after the impact will be the same since the collision is elastic and the kinetic energy remains the same. So the change of momentum will be given by the cosine law right? What bothers me is the second question about the force that acts on the sphere (which can be given by Δp/Δt=ΣF). I can not understand the behavour of the force at the change of direction of the sphere. What I mean is where should I draw the force?