5. For safety reasons, the speed of a child at the bottom of a playground slide cannot exceed 6.0 m/s. What is the maximum height of the slide?

a. 1.8 m
b. 2.9 m
c. 3.2 m
d. 4.5 m

Question

5. For safety reasons, the speed of a child at the bottom of a playground slide cannot exceed 6.0 m/s. What is the maximum height of the slide? 
 
a. 1.8 m 
b. 2.9 m 
c. 3.2 m 
d. 4.5 m

wolfe8 · Answer

Do you have a picture with the mass of a child?

aem9296 · Answer

there is none. i took this from a worksheet

wolfe8 · Answer

Oh ok got it. So at the bottom, the total potential energy is converted to kinetic energy. Meaning, KE=PE, 1/2mv^2=mgh

wolfe8 · Answer

You can cancel the m out. That's why it's not needed.

aem9296 · Answer

OHHHH gotcha thanks so much!!

wolfe8 · Answer

You're welcome. If you're satisfied, you can close this question :)