Posted by **jennifer** on Wednesday, March 17, 2010 at 4:13pm.

a 10kg block is allowed to slide down a ramp with Mk=0.15. what is the acceleration of the block?

- slope of ramp? -
**Damon**, Wednesday, March 17, 2010 at 4:57pm
I do not know what Mk is

Need slope of ramp and friction coefficient.

- physics -
**Damon**, Wednesday, March 17, 2010 at 4:58pm
By the way, the mass should not matter.

- physics -
**drwls**, Wednesday, March 17, 2010 at 4:59pm
The numerical value of acceleration, a, will depend upon the angle of the block. Call that angle "A".

Acclerating force = M g sin A

Friction force = M g cos * Mk

Mg(sin A - Mk cos A) = M a

a = g(sinA - Mk*cosA)

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