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

[scottgregorysg]

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?

 

[maverick280857]

Shouldn't this be on the homework forum?

Find the acceleration of the body along the incline and use kinematics.

 

[ArmoSkater87]

I think the acceleration would be -g*cos(35), from that use constant acceleration equations to solve the problem.

 

[Pyrrhus]

It will be with sine. Of course with no friction.

 

[Gopi Prashanth]

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...