Thursday
July 24, 2014

Homework Help: Physics

Posted by Alex on Sunday, October 21, 2012 at 5:01pm.

A 2.42kg block starts from rest at the top of a 22.9◦ incline and accelerates uniformly down the incline,moving 2.41m in 2.14s. The acceleration of gravity is 9.81m/s2. a) What is the magnitude of the acceleration of the block?
Answer in units of m/s2
b) What is the coefficient of kinetic friction
between the blockand the incline?
c) What is the magnitude of the frictional
force acting onthe block?
Answer in units of N
d)What is the speed of the block after it slides
the distance of 2.41?
Answer in units of m/s

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