Aball is thrown vertically upwards with a velocity of 49 m/s calculate : -
1)the maximum height to which its rises.
2)the total time it takes to return to the surface of the earth.

The man fires an 80 g arrow so that it is moving at 80 m/s when it hits and embeds in a 8.0 kg block resting on ice. how far will the block slide on the ice before stopping? a 7.1 n friction force opposes its motion.

Explain what happens at the saturation point when adding salt to water at room temperature.

The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?