3. a stone is thrown straight upward with a speed of 20 m/s. it is caught on its way
down at a point 5.0 m above where it was thrown.
(a) how fast was it going when it was caught?
- (b) how long did the trip take?

Acar of mass m goes around a banked curve of radius r with speed v. if the road is frictionless due to ice, the car can still negotiate the curve if the horizontal component of the normal force on the car from the road is equal in magnitude to 101) a) mv2/r b) mg/2. d) mg e) tan[v2/(eg)]

Can anybody me with this? ? (picture included.)

Me pl give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.