Question

guys please answer this question.....no spam please...​

Answer 1

Answer:

$\frac{1}{12}$

Explanation:

ω=1200rev/min=20rev/sec

t=4min=240sec

ω=ω°+αt

0=20+α(240)

α= -1/12       .....(-ve sign indicates deacceleration)

α=1/12

THANKS

Answer 2

Explanation:

here is your answer...