A plane must travel 2000 km into a northward 50 km/hr headwind to deliver materials then returns home. The plane's engine propels the plane with a velocity of 150 km/hr. a. What is the relative velocity of the plane heading to the delivery? Magnitude: Direction: b.What is the total...

The maximum power of a car of mass 1200 kg when it is travelling at a constant Velocity of 30 m/s is 90 kW. Calculate the forward thrust (F) of the car’s engine when the car is travelling at 30 m/s.

You have a mass of 70 kg. You are sitting on a 14-kg sled, which can slide across the surface of a frozen pond (which is horizontal and frictionless). You have five heavy rocks (7 kg each) with you in the sled. You are going to attempt to propel the sled forward by throwing these rocks out the...

A ball is thrown straight upward and rises to a maximum height of 18.0 m above its launch point. At what height above its launch point has the speed of the ball decreased to one-half of its initial value?