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A ball is dropped from the roof of a building The mass of the ball is 3.0 kg What is the potential energy of the ball in the instant that it is exactly 18.0 meters above the ground?
Wiki User
∙ 14y ago
529.2 J
Wiki User
∙ 14y ago
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When dropped from a building a cricket ball and a football have the same velocity or they hit the ground at same instant which more correct answer?
they hit the ground at same instant
What is the potential energy of the ball in the instant that it is exactly 18.0 meters above the ground?
529.2 J
If you dropped a brick a tennis ball and a feather from a building on the Moon in what order would they land?
They would land in the same order in which I dropped them. If I dropped them all at the same instant,then they would all land at the same instant. The same can be said for a truck, a cinder block, and a hair.
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Ignoring any effects due to air resistance, the speed of the stone is zero at the instant it's dropped, and increases steadily to 78.98 meters per second when it hits the ground. The velocity is directed downward throughout the experiment.
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mass x velocity = momentum
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Is kinetic energy a force motion or energy?
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Which of the following is true at the point where you reach the top of your jump on a trampoline?
At the top of the jump, your speed is changing from upward to downward speed, so there's an instant there where your speed is zero. -- Potential energy is max, because your height is max. -- Kinetic energy is zero, because your speed is zero.
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They would both SPLAT on the ground at the same instant.
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When a body is projected simultaneously from the top of the building with different initial horizontal velocity which of the two will hit the ground first?
Ignoring air resistance, the horizontal component of velocity has no connection with, and no effect on, the vertical component. Two bodies that leave the top of the building simultaneously with the same vertical velocity hit the ground at the same time, regardless of their horizontal velocities or their masses. That's the same as saying that a bullet fired horizontally from a gun and a bullet or a stone dropped from the gun's muzzle at the same instant hit the ground at the same instant. Strange but true.
