What Is the Initial Velocity of a Body Thrown Up on a Slope?

[siddharthmishra19]

A body is thrown up on a slope. It reaches a point (l, say) 2 times: at t1 = 1sec and t2=2sec. What is the initial velocity with which it is thrown

Steps and explanation will be helpful
Thank u

 

[arunbg]

Please post your thoughts on the problem and your area of difficulty.

 

[Farsight]

What equations have you got to work with?

Where will the body be at 1.5 seconds?

 

[siddharthmishra19]

I do not know where to start with the problem. I can work with the simple equations of motion

s=ut+(at^2)/2
v=u+at