Homework Help: Physics

Posted by Guy on Thursday, October 11, 2012 at 12:22am.

A 60kg skier starts from rest at a height of 20m above the end of a ski-jump and leaves the ramp at an angle of 28 degrees. Neglet air resistance and assume the ramp is frictionless.
A) What is the max height (h) of his jump above the end of the ramp
B)If he increased his weight by putting on a backpack, would (h) then be greater, less, or the same.

Physics - Elena, Thursday, October 11, 2012 at 9:34am
PE=KE
mgH=mv₀²/2
v₀=sqrt(2gH)=sqrt(2•9.8•20) = 19.8 m/s,
h= vₒ²•sin²α/2g,
(B) the same (‘h’ is independent on mass)

Answer this Question

Related Questions

physics - A 48 kg skier starts from rest at a height of H = 28 m above the end ...
Physics 1 - A skier of mass 109 kg travels down a frictionless ski trail. a)If ...
Repost-Physics 1 - A skier of mass 109 kg travels down a frictionless ski trail...
mechanics - A 60 Kg skier leaves the end of a ski-jump ramp with a velocity of ...
Physics - A skier leaves the end of a horizontal ski jump at 22.0 m/s and falls ...
physics - A 60 kg skier leaves the end of a ski-jump ramp with a velocity of 26 ...
Physics - A ski jumper starts from rest 51.0 m above the ground on a ...
physics - A ski jumper starts from rest 44.0 m above the ground on a ...
physics - A water-skier lets go of the tow rope upon leaving the end of a jump ...
Physics - A water skier lets go of the tow rope upon leaving the end of a jump ...

For Further Reading

First Name:
School Subject:
Answer: