2d Projectles Motion/Kinematics

[Jessicaelleig]

HI guys, I am having a lot of trouble with determining initial velocity, x and y components etc. Can someone please help me with this

Sara drives a rocket sled from rest 25 m up a 15 degree ramp at an acceleration of 8 m/s2. Whats the final velocity?

Thank you

 

[LowlyPion]

HI guys, I am having a lot of trouble with determining initial velocity, x and y components etc. Can someone please help me with this

Sara drives a rocket sled from rest 25 m up a 15 degree ramp at an acceleration of 8 m/s2. Whats the final velocity?

Thank you

The way the problem is worded means that the angle is of no concern because the m*g*Sin15 term is absorbed by the statement that it accelerates at 8m/s² up the ramp.

This suggests that you are only concerned with V² = 2*a*x

Of course the angle is of concern with regard to what happens after it leaves the ramp.