A small block, mass m = 5.00 kg, travels with speed v = 2.80 m/s along a flat, horizontal surface towards an inclined plane which makes an angle of θ=44.0 degrees with respect to the horizontal. Friction is negligible.
a) What is the speed of the block after it moves a distance d=0.409 m up the plane?
b) At what height h above the horizontal surface does the block momentarily come to rest?