A carnival ride has a 2m radius and rotates once in 0.90s, moving at a constant speed of 14 m/s. Find:
a) the centripetal force acting on a 60 kg rider
b) the centripetal acceleration of a rider.

How do we measure or think of speed in the united states?

Which is not an example of how an object gains elastic potential energy by stretching? a. jumping on a pogo stick b. pulling on a rubber band c. jumping on a trampoline

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.