Please can someone explain to me how to get the answer to this problem:(adsbygoogle = window.adsbygoogle || []).push({});

A sled is initially given a shove up a frictionless 27.0° incline. It reaches a maximum vertical height 1.20 m higher than where it started. What was its initial speed?

Thank you.

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Selection friction problem

**Physics Forums | Science Articles, Homework Help, Discussion**