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## Homework Statement

A 2-kilogram block is released from rest at the top of a curved incline in the shape of a quarter circle of radius R. The block then slides onto a horizontal plane where it finally comes to rest 8 meters from the beginning of the plane. The curved incline is frictionless, but there is an 8 newton force of friction on the block while it slides horizontally. Assume g=10N/kg

A) Determine the magnitude of the acceleration of the block while it slides along the horizontal plane.

B) what time elapses while the block is sliding horizontally

C)Calculate the radius of the incline in meters

## Homework Equations

F/m=a

t= 2(delta)x/a (squared)

## The Attempt at a Solution

a- 8N/2kg=4m/s^2

b- T=2(8m)/4m/s^2 (squared)= 2 sec

c-???