a plane moving at a horizontal speed of 150 m/s. and is 2000m in the sky. if debris fall, how far from the intial release point will it hit the ground?

44. A metal ramp 6.00 m long is tilted 10.0° and is used to load and unload a moving van. Suppose a 20.0 kg box is pushed up the ramp and it slides with a friction coefficient of 0.30. The ramp can be viewed as a "machine" where the useful output is the potential energy gain of the box and the input is the physical work done by the person doing the pushing. (a) Determine the efficiency of the ramp. (b) Determine the ratio of the force needed to lift the box without the ramp to the force needed to push it along the ramp (this is called the mechanical advantage).

An Orc archer below a 54 meter high tower (different height from the wall from problem 3) fires his crossbow at 45 m/s at a 53.1 degree angle from horizontal.   What is the closest that the orc can stand to the tower to exactly hit a target on the top of the tower? What is the farthest that the orc can stand to the tower to exactly hit a target on the top of the tower?  What is the highest point (above the tower, not the ground!) that the orc’s arrow can reach firing at this velocity and angle?

A projectile is fired from an angle of 35degrees above the horizontal with a speed of 180m/s. Calculate the height to which it rises, the time of flight, and the horizontal range.