Question

a car moving with uniform speed of 2 metre per second in a circle of 0.4 m its angular speed in radian per second is​

Answer 1

Answer:

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Answer 2

Explanation:

Given that

A particle moving in a circle of radius 0.4m from rest. It attains angular velocity 2rad/s in 2 sec

Using the equation

ω−ω

0

=αt. Here ω

0

=0

Angluar acceleration, α=

t

ω

=

2

2

=1rad/s

2

0.4

So tangential accleration, a

t

=αr=0.4m/s

2

dt

dv

=a

t

velocity, v=0.4tm/s

Radial accleration, a

c

=

r

v

2

=

0.4

0.16t

2

=0.4t

2

At t=2 sec

a

c

=1.6m/s ²