- #1

ova5676

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## Homework Statement

A 1.9-kg block slides down a curved, frictionless ramp. The top of the ramp is 1.5m above the ground; the bottom of the ramp is 0.25m above the ground. The block leaves the ramp moving horizontally, and lands distance D away.

A) What is distance D away?

B) Suppose the ramp is not frictionless. Find the distance D for the case in which friction on the ramp does 9.7 J of work on the block before it enters the horizontal (and still frictionless) section towards D.

For both A) and B) the time is 4.0s at distance D.

## Homework Equations

Potential Energy (1) + Kinetic Energy (1) = Potential Energy (2) + Kinetic Energy (2)

mgh(1) + 1/2*m*v^2(1) = mgh(2) + 1/2*m*v^2(2)

(basically the first part is at the top of the ramp and the final is at the bottom of the ramp)

## The Attempt at a Solution

Since the ramp is frictionless, the block is going at a constant speed. However, when I tried using the equation it didn't work out so there's probably another way.