Question

A particle starts from rest and it's angular displacement (in radius) is given by Φt^2/20 +t/5 calculate the angular velocity at the end of t=4 second .

please answer fast it's urgent ​

Answer 1

EXPLANATION:

A particle starts from rest and its angular displacement (in red) is given by

0= t²/20+t/5,

calculate the angular velocity at the end of t =4 second.

Solution

Angular Velocity,

w= do/dt (t²/20+t/5) = 2t/20+1/5

when t = 4s,

w=2×4/20+1/5 =0.6rad/s

MARK AS BRAINLIST!

Answer 2

Explanation:

here's your answer in the photo okayyyyy

here's your answer in the photo okayyyyy

here's your answer in the photo okayyyyy