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2 years ago

Help meh in this question

Physics

1 answer:

V125BC [204]2 years ago

7 0

Radius=r=R_o/2
angular velocity=w=v_o
mass=m

We know

$\boxed{\sf K.E=\dfrac{1}{2}mv^2}$

For Rotational motion

$\boxed{\sf v=r\omega}$ .

Putting value

$\\ \qquad\quad\sf{:}\dashrightarrow K.E=\dfrac{1}{2}m(r\omega)^2$

$\\ \qquad\quad\sf{:}\dashrightarrow K.E=\dfrac{1}{2}mr^2\omega^2$

$\\ \qquad\quad\sf{:}\dashrightarrow K.E=\dfrac{1}{2}m\left(\dfrac{R_o}{2}\right)^2v_o^2$

$\\ \qquad\quad\sf{:}\dashrightarrow K.E=\dfrac{1}{4}mv_o^2$

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3 years ago

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KIM [24]

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2 years ago

If you jog at a speed of 1.5m/s for 20 seconds how far di you travel

Harlamova29_29 [7]

Answer: 30m

Explanation:

Given:

Speed: 1.5m/s

Time: 20 seconds

Distance = speed × time

Distance = 1.5 × 20

= 30m

Therefore you will travel 30m

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2 years ago

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spayn [35]

This topic is actually quite controversial, but the answer in this case would be C.

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2 years ago

Help meh in this question​

Help meh in this question