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2 years ago

A tennis ball is hit into the air with a racket. when is the ball’s kinetic energy the greatest? ignore air resistance.

Physics

1 answer:

krok68 [10]2 years ago

4 0

When the player strikes the ball, kinetic energy is at its greatest.

Kinetic energy = 1/2*m* $v^{2}$

where m denotes mass and v denotes velocity.

Therefore, kinetic energy is inversely correlated with square of velocity.

When a player strikes the ball, velocity is at its highest.

Thus, when the player strikes the ball, kinetic energy is at its highest.

<h3>What is kinetic energy?</h3>

It is the energy that a body has because it is moving.

<h3>Which 5 forms of kinetic energy are there?</h3>

Kinetic energy comes in five different forms:

radiant
thermal
sound
electrical
mechanical.

Kinetic energy is measured in Joules.

Importance of kinetic energy:

The capacity to perform work is kinetic energy's most significant quality.
Force acting on an object while it is moving is referred to as work.
Energy and work are interchangeable because of their tight relationship.

To learn more about kinetic energy visit:

brainly.com/question/12669551

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Answer:

Although this question is not complete, I would give a general solution to this kind of problems.

If y(t) describes the position of a body with time such that

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Explanation:

As an example supplies the position of a particle is given by

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V(t) = 4x3t²- 3x2t¹

V(t) = d(t)/dt = 12t² - 6t.

Another example,

If y(t) = 15t³ - 2t² + 30t -80

V(t) = d(t)/dt = 15x3t² - 4t +30 = 45t² + 4t + 30.

Basically, in the equations above the powers of t reduces by one when computing the velocity function from y(t) by differentiation (calculating the derivative of y(t)). The constant term C (9 and 80 in the functions of y(t) in examples 1and 2 above) reduces to zero because the derivative of a constant (and ordinary number without the t attached to it) is always zero.

One last example,

y(t) = 2t^6 -3t²

V(t) = d(t)/dt = 12t^5 - 6t

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