an incline problem...

[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.

[Cyclovenom]

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...