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**1. Homework Statement**

A block is sent sliding up a 50 degree ramp at an initial speed of 9m/s. The coefficient of kinetic friction between the ramp and the block is 0.51. Find the acceleration of the block.

**2. Homework Equations**

Fk = (Fn)uk

F=ma

**3. The Attempt at a Solution**

umgsin50 = ma

ugsin50 = a

0.51(-9.8)sin50 = a

a = -3.829

Which is far from the right answer.