I need somebody to help explain how Newton’s first law is effecting a tennis racket

Physics

1 answer:

Talja [164]3 years ago

3 0

In this case the racket is the unbalanced force which acts upon the object in motion which is the birdie or however you call it

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What is the speed of an object at rest

sammy [17]

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3 years ago

A 60 cm diameter wheel accelerates from rest at a rate of 7 rad/s2. After the wheel has undergone 14 rotations, what is the radi

Mamont248 [21]

Answer:

$a=368.97\ m/s^2$

Explanation:

Given that,

Initial angular velocity, $\omega=0$

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$\theta=\omega_it+\dfrac{1}{2}\alpha t^2\\\\t=\sqrt{\dfrac{2\theta}{\alpha }} \\\\t=\sqrt{\dfrac{2\times 87.96}{7}} \\\\t=5.01\ s$

Let $\omega_f$ is the final angular velocity and a is the radial component of acceleration.

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Radial component of acceleration,

$a=\omega_f^2r\\\\a=(35.07)^2\times 0.3\\\\a=368.97\ m/s^2$

So, the required acceleration on the edge of the wheel is $368.97\ m/s^2$ .

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4 years ago

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Rufina [12.5K]

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This is also known as length contraction theory

As we know here that

$L = L_0\sqrt{1 - \frac{v^2}{c^2}}$