1. A ball is thrown into the air at a speed of 7 m/s. What is the maximum height of the ball if its mass is 2 kg? 2. Given the ball above (m = 2 kg), what is the speed of the ball at a height of 2 m?​

The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .