Use newton's laws of motion to answer! when nasa launched the space shuttle, it needed a lot of fuel to get off of the ground, but once in orbit, it did not need any fuel. why did it need so much fuel to get off the ground? why could it turn off its engines and use no fuel once in orbit?

During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.