Grade 11 Question Need Help Quick

[LiquidIce]

The question is something like this im not sure exactly cuz it was on my test.

Tarzan is running at 8.0 m/s and jumps onto a vine. How high above the bottom of his swing will he go ?

Plz help i have no clue how to do this

[outerrim]

Put what you have into a COE equation.
0= .5mvf^2 - .5 mvi^2 + mgzf - mgzi

vf=0 at top of swing
zi=0 in my reference frame

so 0= -.5 mvi^2 + mgzf

and solve for zf.

[LiquidIce]

um.......whats zf stand for

[outerrim]

What you are looking for. (How high above the bottom of his swing will he go)

You know what the others stand for right?

[LiquidIce]

i just found out that they also gave the mass of tarzan in the question the mass is 60kg