POSSIBLE A 5-kg object is moving at 20 m/sec. Which of these would increase the kinetic energy the most?
Doubling the mass of the object
Doubling the speed of the object
Doubling the volume of the object

Write short note on the following ; collision theory, rotation angle and angular velocity, centripetal acceleration, coriolis force, and newton's law of gravitation.

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

What was the first instrument to ever record an earthquake?