A 0.5 kg pendulum bob has a speed of 15 m/s as shown below. The pendulum bob is attached to a string that is 0.5 meters long. As a result of the collision the pendulum swings to the right and the bob moves up
by distance h.
What is the period of the pendulum? What is the length of the pendulum?

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's

The 10-kg double wheel with radius of gyration of 125mm about o is connected to the spring of stiffness k = 600 n/m by a cord which is wrapped securely around the inner hub. if the wheel is released from rest on the incline with the spring stretched 225 mm, calculate the maximum velocity v of its center o during the ensuing motion. the wheel rolls without slipping

Simple machines can a. increase force only b. decrease force only c. increase or decrease force