At the heart of a grandfather clock is a simple pendulum 1.55 m long; the clock ticks each time the pendulum reaches its maximum displacement in either direction.

Aferris wheel is a vertical, circular amusement ride with radius 9 m. riders sit on seats that swivel to remain horizontal. the ferris wheel rotates at a constant rate, going around once in 9 s. consider a rider whose mass is 56 kg. at the bottom of the ride, what is the perpendicular component of the rate of change of the rider's momentum? at the bottom of the ride, what is the vector force exerted by the seat on the rider?

Anne applies a force on a toy car and makes it move forward. what can be said about the forces acting on the toy car at the moment anne applies the force?

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity