- #1
jgoff14
- 16
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Ive got two problems that are driving me crazy
3. A 200 g hockey puck is launched up a metal ramp that is inclined at a 30° angle. The coefficients of static and kinetic friction between the hockey puck and the metal ramp are μs = 0.40 and μk = 0.30, respectively. The puck's initial speed is 96 m/s. What vertical height does the puck reach above its starting point?
4. The figure shows a 100 kg block being released from rest from a height of 1.0 m. It then takes 0.76 s to reach the floor. What is the mass of the block on the left?
(attached pic)
f=ma
i don't really have an attempt just a bunch of notes and calculations but i don't know how to bring it together
N=9.8*200sin(300) => 980n
well I am looking over it and don't have anything more than that i can't even tell what i was doing before. PLEASE help
Homework Statement
3. A 200 g hockey puck is launched up a metal ramp that is inclined at a 30° angle. The coefficients of static and kinetic friction between the hockey puck and the metal ramp are μs = 0.40 and μk = 0.30, respectively. The puck's initial speed is 96 m/s. What vertical height does the puck reach above its starting point?
4. The figure shows a 100 kg block being released from rest from a height of 1.0 m. It then takes 0.76 s to reach the floor. What is the mass of the block on the left?
(attached pic)
Homework Equations
f=ma
The Attempt at a Solution
i don't really have an attempt just a bunch of notes and calculations but i don't know how to bring it together
N=9.8*200sin(300) => 980n
well I am looking over it and don't have anything more than that i can't even tell what i was doing before. PLEASE help