Question

A body moving with constant angular speed describes an angle π / 3 radian in one second. The angular speed of the body is?
​

Answer 1

Answer:

Given,

Radius, r=1m

Initial angular velocity,ω

o

=12rad/s

Final angular velocity, ω=

60

2π

(

π

480

)=16 rad/s

Apply angular kinematic equation.

ω=ω

o

+αt

(a) Angular acceleration, α=

t

ω−ω

o

=

2

16−12

= 2 rad/s

2

(b) Tangential velocity, V

tangential

=ωr=r(ω

o

+αt)=12+2t

(c) Centripetal acceleration a

c

=rω

2

Net acceleration, a

net

=

rω

2

+αr

=

r(ω

o

+αt)

2

+αr

At,(t=0.5sec), a

net

=

1(12+2×0.5)

2

+2×1

=13.07ms

−2

At,(t=3sec), a

net

=

1(12+2×3)

2

+2×1

=18.05ms

−2

(d) Angular displacement at (t=3sec) , θ=ω

o

t+

2

1

αt

2

=12×3+

2

1

×2×3

2

=45rad

Answer 2

Answer:

hi there

Explanation:

on solving you get the answer as 45

hope this helps

please mark as brainliest