Question

In circular motion which of the following relations are validImmersive Reader
(1 Point)
v=w x r
torque == r x p
L= r X F

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

Analytical method: Consider a particle revolving in the anticlockwise sense along the circumference of a circle of radius r with center O as shown figure.

Let

v

= Linear velocity of the particle

ω

= Angular velocity of the particle

r

= radius vector of the particle

In the vector from, the linear displacement is

δ

=

δθ

×

r

Dividing both side by δt we get

δt

δs

=

δt

δθ

×

r

lim

δt→0

δt

δs

=lim

δt→0

δt

δθ

×

r

δt

ds

=

δt

δθ

×

r

But

δt

ds

=

r

Linear velocity and

δt

δθ

=ω Angular velocity

∴

v

=

ω

×

r

I hope this answer help you