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Alina [70]
3 years ago
8

A ball is thrown up onto a roof, landing 4 sec later at height of 20m above the release level. The balls path just before landin

g is angled at 60 degree with the roof.
a) find the horizontal distance d it travels.
b) what is the magnitude of the balls initial velocity?
c) what is the angle (relative to the horizontal) of the balls initial velocity?
Physics
1 answer:
grandymaker [24]3 years ago
3 0

Answer: 20

Explanation:

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Two<br>vectors Å and °B are such that A = 2<br>and A-B-C find the angle between them​
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The pendulum of the clock.

Explanation:

Hi there!

The kinetic energy is the energy associated with the velocity of the object. The potential energy is the energy associated with the position of the object. In the objects listed in the question, only one object is moving: the pendulum of the clock (assuming that the clock is functioning). If the clock functions, the pendulum is moving when it is at the lowest point of its arc of motion and with maximum velocity. All potential energy that the pendulum stored when it reached the highest height, is transformed into kinetic energy at the lowest point. Thus, at that point, the object has more kinetic energy than potential energy.

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A runner completes the 300-meter dash in 38 seconds. What is the speed of the runner? Round your answer the answer to the neares
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A student, standing on a scale in an elevator at rest, sees that his weight is 840 N. As the elevator rises, his weight increase
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As per FBD while its accelerating upwards

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5 0
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