1) Suppose a soccer player kicks the ball from a distance 30 m toward the goal. Find the initial speed of the ball if it just passes over the goal, 2.4 m above the ground, given the initial direction to be 40 above the horizontal.

m/s

As shown in the figure below, a 2.25 kg block is released from rest on a ramp of height h. rough patch WWWWWW 15.0 cm When the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 15.0 cm that has a coefficient of kinetic friction #k = 0.570. Find h (in m) such that the block's speed after crossing the rough patch is 3.60 m/s. (Enter a number.) m