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3 years ago

Describe the rise and fall of a thrown basketball by using the concepts o kinetic energy and potential energy

2 answers:

7 0

In first moment, ball has max kinetic energy and it gravitational potential is lowest. On the maximum height, kinetic energy is lowest and the gravitational is lowest. Moment before ball hits ground its kinetic energy is highest and gravitational potential is lowest.

denpristay [2]3 years ago

6 0

Explanation:

The kinetic energy is due to the motion of the object.

The potential energy is due to the position of the object.

When a basketball is thrown upward then the kinetic energy decreases and the potential energy will be maximum when it will reach its maximum height.

When it starts falling then potential energy starts decreases due to the decrease in the height and the kinetic energy starts increases.

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3 years ago

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2 years ago

a dart player throws a dart at speed of 12.9m/s. the dart hits the board 0.35m below the height from which it was theown. how fa

Veseljchak [2.6K]

1. Find the amount of time the dart is in the air using the equation dy...
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3 years ago

Why is water sometimes called the universal solvent.

Mrrafil [7]

Answer:

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Explanation:

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1 year ago

A particle of mass, m = 3.0kg movers with a uniform velocity, v = (5m/s)I +(3m/s)j. At the time, t, the particle passes through

quester [9]

Answer:

The magnitude is 63 kg m²/s, and the direction is -k.

Explanation:

Plug the values into the equation:

L = m v×r

L = (3.0 kg) (<5 i + 3j> m/s × <2i − 3j> m)

Take the cross product. The cross product of two dimensional vectors is:

<v₁ i + v₂ j> × <r₁ i + r₂ j> = <(v₁ r₂ − v₂ r₁) k>

Therefore:

L = (3.0 kg) <((5)(-3) − (3)(2)) k m²/s>

L = (3.0 kg) <-21 k m²/s>

Multiply:

L = <-63 k kg m²/s>

The magnitude is 63 kg m²/s, and the direction is -k.

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2 years ago