What is the maximum height h of his jump above the end of the ramp

AI Thread Summary
To determine the maximum height of the skier's jump, start with the conservation of energy principles, where potential energy at height H converts into kinetic energy at the ramp's end. The skier's initial potential energy is calculated using PE = mgh, and the velocity at the end of the ramp can be derived from the kinetic energy formula KE = 0.5mv². Split the velocity into vertical and horizontal components, using the angle of 28° to find the vertical component. Calculate the time until the vertical component of velocity reaches zero, which indicates the peak height. This approach combines energy conservation and projectile motion principles to find the maximum height above the ramp.
nmegabyte
Messages
15
Reaction score
0
A 48 kg skier starts from rest at a height of H = 28 m above the end of the ski-jump ramp. As the skier leaves the ramp, his velocity makes an angle of 28° with the horizontal. Neglect the effects of air resistance and assume the ramp is frictionless.
Could u give me a formula i need to start with because i have no idea about the formula.
 
Physics news on Phys.org
Split the velocity into its vertical and horizontal components. Then just calculate how long until the vertical component equals zero, this will be the time equivalent to the maximum height before the skier starts to descend again. You should have learned the equations of motion, and the equations for potential and kinetic energy, that's about all you'll need.
 

Thread 'Rolling without slipping on a curved surface'

Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
View full post »
Thread 'Voltmeter readings for this circuit with switches'

Thread 'Voltmeter readings for this circuit with switches'

TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
View full post »

Similar threads

Ski Jump Ramp: Calculating Gravitational Work, Total Speed, and Air Drag
Replies
7
Views
2K
Find Projectile Flight Time Given Only Maximum Height
Replies
4
Views
2K
Find distance from ramp at which skier lands
Replies
7
Views
2K
Downward Projectile Motion on an Inclined Plane
Replies
2
Views
6K
What Is the Effect of Friction on the Height of a Sphere Rolling Down a Ramp?
Replies
2
Views
2K
Consservation of energy problem
Replies
2
Views
2K
Conservation of Energy ski jump problem
Replies
7
Views
17K
What Is the Distance a Skier Lands From a Ramp?
Replies
1
Views
1K
Find Height of Ramp: H=1.0m, d=1.0m, θ=30°
Replies
3
Views
6K
Find the final speed of a skier if he lands 145m down a 20 degree slope?
Replies
1
Views
2K

Hot Threads

Recent Insights

Back
Top