Question

Benjamin is riding a unicycle. The tire of his unicyle has a circumference of 2.8 m, and the tire revolves 1.5 times per second. What is the distance Benjamin travels in 100 seconds?

Answer 1

420m

Explanation:

2.8mx1.5revx100s

Answer 2

Benjamin travels 420 m in 100 seconds .

Explanation:

Given : The tire of his unicycle has a circumference of 2.8 m.

The tire revolves 1.5 times per second

To Find: What is the distance Benjamin travels in 100 seconds?

Solution :

Since we are given that he wheel makes 1.5 revolutions per second.

It makes revolutions in 100 seconds =
`100*1.5`

=
`150`

Thus it makes 150 revolutions in 100 seconds

Now, Each revolution travels 2.8 m.

So, 15 revolutions it will travel =
`2.8* 150`

=
`420`

Thus Benjamin travels 420 m in 100 seconds .