PHYSICS Quiz 2
(position time acceleration)
Name:
1. Calculate the average acceleration of the runner in the x direction only.
Assume 24Fps. Assume the runner is 160cm tall. Is the acceleration
constant? Explain. (10 marks)

If you touch a hot light bulb and get burned, that is an example of a. radiation b. convection c. conduction

Apossible explanation for a set of facts that can be tested by further investigation is called

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?