A stone is thrown with an initial speed of 15 m/s at an angle of 53° above the horizontal from the top of a 35m building and air resistance is negligable, what is the magnitude of the horizontal displacement of the rock?

A daredevil is attempting to jump his motorcycle over a line of buses parked end to end by driving up a 32° ramp, measured from the horizontal, at a speed of 40.0 m/s (144 km/h). The top of the ramp is at the same height as the roofs of the buses and each bus is 20.0 m long. How many buses can he clear? n = By how many meters does he clear the last bus? d =

You are hiking in the rocky canyon lands of Utah and eventually realize you are lost. You climb up to stand on one of the tall rocks and shoot a flaming arrow into the air to signal your distress. You shoot the arrow with an initial speed of 30.0 m/s at an angle of 60.0° above the horizontal. The arrow hits the ground 7.50 seconds later. (Neglect air resistance.) (a) What maximum height does the arrow reach above its launch point? (b) Relative to the launch point, where does the projectile land? Give your answer in Cartesian (x,y) coordinates as well as polar (r,0) coordinates.

A ball is thrown horizontally from a height of 20 m and hits the ground with a speed that is three times its initial speed. What is its initial speed?