A 1.0 kg wood block is launched up a wooden ramp that is inclined at a 40° angle. The block's initial speed is 11 m/s. (Use µk = 0.20 for the coefficient of kinetic friction for wood on wood.)
(a) What vertical height does the block reach above its starting point?
(b) What speed does it have when it slides back down to its starting point?

Question

A 1.0 kg wood block is launched up a wooden ramp that is inclined at a 40° angle. The block's initial speed is 11 m/s. (Use µk = 0.20 for the coefficient of kinetic friction for wood on wood.) 
(a) What vertical height does the block reach above its starting point?
(b) What speed does it have when it slides back down to its starting point?

nottim · Answer

As usual, draw a diagram first and figure out the variables.

anonymous · Answer

okay well diagrams got me nowhere because i dont know wht to do with it then

nottim · Answer

Show me.

anonymous · Answer

Do you know Conservation of Energy? or have you worked with all these concepts before of Work and Energy?

jamesj · Answer

Even if a diagram doesn't give you the answer, they're really a great starting point.  I strongly recommend starting with one nearly always for these sorts of kinematics problems.

anonymous · Answer

yeah i know what conser energy is

anonymous · Answer

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