Question

A halfback makes a turn on the football field. The halfback sweeps out a path that is a portion of a circle with a radius of 12-meters with a tangential velocity of 5 m/s. Determine acceleration of the halfback.

Answer 1

The right answer is "15.072 m/s".

Step-by-step explanation:

The given values are:

Radius,

= 12 m

Time,

= 5 m/s

As we know,

⇒
`s=(d)/(t)`

On substituting the given values in the above formula, we get

⇒
`=(2 \pi(12))/(5)`

⇒
`=(2* 3.14* 12)/(5)`

⇒
`=(75.36)/(5)`

⇒
`=15.072 \ m/s`