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A person jumps from the roof of a house 3.6-m high. When he strikes the ground below, he bends his knees so that his torso decelerates over an approximate distance of 0.70 m. If the mass of his torso (excluding legs) is 41kg .
Part A Find his velocity just before his feet strike the ground.
Part B Find the average force exerted on his torso by his legs during deceleration.
A particle has a de Broglie wavelength of 3.20 × 10-10 m. Then its kinetic energy doubles. What is the particle's new de Broglie wavelength
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A 5kg steel ball strikes a wall with a speed of 8m/s at an angle of 60.0° with the surface. It bounces off with the similar speed and angle. If the ball is in contact with the wall for 0.200 s, what is the average force exerted by the wall on the ..
A string is clamped at one end and the other end rests on a light, frictionless pulley with a mass hanging below it to provide a tension. What is the mass on the end of the string
Assume the volume of the tank and the temperature of gas remain constant all through this operation.
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