Physics energy help

[Dino18]

Running at 4.0 m/s, Rafael grabs a vertical rope and swings upward. Assuming that air resistance is negligible, how far does Rafael rise? Plz help!!! Ty.

 

[collinsmark]

Hello Dino18,

Welcome to Physics Forums!

Running at 4.0 m/s, Rafael grabs a vertical rope and swings upward. Assuming that air resistance is negligible, how far does Rafael rise? Plz help!!! Ty.

What do you think?

(Here's a hint: try conservation of energy [potential and kinetic].)

 

[cupid.callin]

collinsmark is right.

Refer this: http://library.thinkquest.org/2745/data/lawce1.htm

 

[Dino18]

I know what to do now tyvm