- #1

- 46

- 0

## Homework Statement

A large sphere rolls wothout slipping across a horizontal surface. The sphere has a constant translational speed of 10m/s,mass of 25 kg, radius of .2m. The moment of inertia of the sphere about its center of mass is I=2mr

^{2}/5. The sphere approaches a 25 degree incline of height 3m as shown above and rolls up the incline without slipping. Calculate the spheres velocity just as it leaves the top of the incline.

## Homework Equations

## The Attempt at a Solution

I found total kinetic energy by adding translational kin enery, rotational kin energy and (mgh).... i got 3015J and then set that number equal to the equation for kin energy (1/2mv

^{2}) and found my new v and got 15.53 m/s but that cant be correct bc if its initial vel as it was going toward the ramp was 10 m/s then why would it speed up if its going up a ramp? idk what i did wrong pleaseee help.!