Martin rides his motorcycle at 20 m/s. suddenly he sees a row of stones blocking the road 170 m ahead. He applies the brakes and the motorcycle is
decelerated at 2 m/s?. Justify will he be able to stop in time?
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Acrow drops a 0.11kg clam onto a rocky beach from a height of 9.8m. what is the kinetic energy of the clam when it is 5.0m above the ground? what is its speed at that point?

What is special about a dc circuit ?

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n