Question

50 points....


PHYSICS....
.....​

Answer 1

$\huge\mathfrak\red{Answer}$

Refer to the attachment....

Answer 2

Answer:

Correct option is

A

12.5

Given  

Time=t=15s=  15 /60 = 1/4min

Angular displacement:

θ=[ ω+ω0/2 ]t=[  0+100 /2×  1/4 ]=  4 /50  =12.5 revolutions