Nicholas, with a mass 82.0 kg, jumps vertically upward to a maximum height of 49.0 cm. With what speed does the Earth recoil because of his jump?
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Nicholas, with a mass 82.0 kg, jumps vertically upward to a maximum height of 49.0 cm. With what speed does the Earth recoil because of his jump?
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- A tennis ball of mass 0.0621 kg is served. It strikes the ground with a velocity of 54.0 m/s (120 mi/h) at an angle of 22.0 degrees below the horizontal. Just after the bounce it is moving at 53.0 m/s at an angle of 18.0 degrees above the horizontal. If the interaction with the ground lasts 0.0630 s, what is the magnitude of the average force exerted by the ground on the ball ?When a golf ball of mass m = 0.11 kg is dropped from a height h. It interacts with the floor for t = 0.195 s, and applies a force of F = 10.5 N to the floor when it elastically collides with it. How high h in meters would the ball travel after rebounds?Emma and Katie are racing along in their new wagon. Upon reaching the bottom of the hill traveling at 13.2 m/s, Katie notices her teddy bear 12.0 m in front of them, panics and locks the brakes sending the wagon into a skid. If the wagon and its contents have a total mass of 1.50 x101 kg, and the coefficient of kinetic friction between the road and the rubber wagon tires is (0.75), by how much does the wagon miss the bear?