Incline Problem: Block Projected Up 35 Degrees, 8.2 ft/s

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Homework Help Overview

The discussion revolves around a block projected up a frictionless inclined plane at an angle of 35 degrees with an initial velocity of 8.2 ft/s. Participants are exploring how far the block travels up the incline, the time taken to reach that point, and its speed upon returning to the bottom.

Discussion Character

  • Mixed

Approaches and Questions Raised

  • Some participants suggest calculating the acceleration along the incline, while others propose using conservation of energy principles. There is also discussion about the correct application of trigonometric functions in the context of the incline.

Discussion Status

The discussion is active with various approaches being considered, including kinematic equations and energy conservation. Participants are questioning the assumptions made regarding forces acting on the block and the appropriate methods to apply.

Contextual Notes

There is a suggestion that this problem may belong in a different forum, indicating potential constraints on the type of help expected. The lack of friction is a key assumption being discussed.

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a block is projected up a frictionless inclined plane. the angle of incline is 35 degrees, and the initial velocity is 8.2 ft/s. how far up the plane does the block travel? how long does it take to get there? and what is its speed when it gets back to the bottom?
 
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Shouldn't this be on the homework forum?

Find the acceleration of the body along the incline and use kinematics.
 
I think the acceleration would be -g*cos(35), from that use constant acceleration equations to solve the problem.
 
It will be with sine. Of course with no friction.
 
And due to conservation of energy and lack of friction (external force) without even solving the problem we can say it would come back down with the same speed...
 

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