AP Physics

posted by .

I have two problems i don't understand if you could solve and show me what you did I would appreciate it :)
1.A 62.0-kg person, running horizontally with a velocity of +3.54 m/s, jumps onto a 13.4-kg sled that is initially at rest.
(a) Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move away.(b) The sled and person coast 30.0 m on level snow before coming to rest. What is the coefficient of kinetic friction between the sled and the snow?
2.A golf ball strikes a hard, smooth floor at an angle of θ = 29.4° and, as the drawing shows, rebounds at the same angle. The mass of the ball is 0.055 kg, and its speed is 45 m/s just before and after striking the floor. What is the magnitude of the impulse applied to the golf ball by the floor? (Hint: Note that only the vertical component of the ball's momentum changes during impact with the floor.)

Similar Questions

1. Physics

A 59.5 kg person, running horizontally with a velocity of +3.90 m/s, jumps onto a 12.2 kg sled that is initially at rest. (a) Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move …

Please tell me where I am going wrong. A 59.5 kg person, running horizontally with a velocity of +3.90 m/s, jumps onto a 12.2 kg sled that is initially at rest. (a) Ignoring the effects of friction during the collision, find the velocity …
3. physics

A disk-shaped merry-go-round of radius 2.63 m and mass 155 kg rotates freely with an angular speed of 0.596 rev/s. A 59.4 kg person running tangential to the rim of the merry-go-round at 3.68 m/s jumps onto its rim and holds on. Before …
4. Physics

A 60.5-kg person, running horizontally with a velocity of +3.76 m/s, jumps onto a 10.4-kg sled that is initially at rest. (a) Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move …
5. physics

A 65 kg person runs with a horizontal velocity of 3.5 m/s and jumps onto an 0.9 kg skateboard which is initially at rest. Assuming negligible friction, what will be the final velocity of the skateboard and the person?
6. Highschool Physics

A 55 kg person runs with a horizontal velocity of 8.0 m/s and jumps onto a 7 kg skateboard which is initially at rest. Assuming negligible friction, what will be the final velocity of the skateboard and the person?
7. PHYSICS HELP !!!!!

A 55 kg person runs with a horizontal velocity of 8.0 m/s and jumps onto a 7 kg skateboard which is initially at rest. Assuming negligible friction, what will be the final velocity of the skateboard and the person
8. physics

A 58.4-kg person, running horizontally with a velocity of +3.84 m/s, jumps onto a 10.7-kg sled that is initially at rest. (a) Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move …
9. physics

A 60.0 kg person, running horizontally with a velocity of 3.80 m/s, jumps onto a 12.0 kg sled that is initially at rest. a) Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move …
10. physics

A 35.0 kg kid run with a horizontal velocity of 5.50 m/s and jumps onto a 5.00 kg sled. What is the velocity of the kid and sled after the impact, if there were no friction?

More Similar Questions