A simple pendulum with length L is swinging freely with small angular amplitude. As the pendulum passes its central or equilibrium position, its cord is suddenly and rigidly clamped at its midpoint. In terms of the original period of the pendulum T, what will the new period be?

How are calculation for velocity and speed different

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?

Time remainin52: 42the chart shows data for a moving object. which conclusion is best supported by the information inthe chart? time (s)velocity (m/s