Question

The radius of a wheel of a train is 0.35 meter . If it makes 450 revolutions per minute let us calculate the velocity of the train per hour​

Answer 1

Answer:

The velocity of train (per hour) is 59.35 km/hour.

Step-by-step explanation:

The radius of a wheel of a train = 0.35 meter

Therefore, circumference of the wheel= 2*π *r = 2*3.14* 0.35 = 2.198 m

Number of revolutions made in 1 minute is given as 450

So, in 60 minutes( 1 hour) , number of revolutions made= 450*60

Also since the circumference is 2.98m, we can say that on one revolution, the wheel covers= 2.198m

Hence, for 450*60 revolutions, it covers= 2.198*450*60 =59,346m or 59.35 km.

So, the velocity of train (per hour) is 59.35 km/hour.

Answer 2

Step-by-step explanation:

this is a answer

you will be taken a example train