Question

Through what angle in degrees does a 33 rpm vinyl record turn in 0.23 s : A) 46° B) 26° C) 53° D) 33°

Answer 1

(a) angle record will be 46°

Step-by-step explanation:

We have given speed = 33 rpm

Time t = 0.23 sec

We know that 1 revolution = 360°

And 1 minute = 60 sec

So 33 revolution/minute
`(33* 360)/(60)=198^(\circ)/sec`

So angle record by vinyl
`=198* 0.23=45.54^(\circ)` , which is nearly equal to 46

So angle record by vinyl is 46°

So option (a) will be the correct answer