An object makes 800 revolution in 4mins. find the rate in rev/min

Answer 1

To find the rate in rev/min, we need to divide the number of revolutions by the time in minutes:

rate in rev/min = number of revolutions / time in minutes

So, in this case:

rate in rev/min = 800 revolutions / 4 minutes

Simplifying this fraction by dividing both the numerator and denominator by 4, we get:

rate in rev/min = 200 revolutions / minute

So the object is making 200 revolutions per minute.