Question

A car tire rotates with an average angular speed of 29 rad/s. In what time interval will the tire rotate 3.5 times? ​

Answer 1

Answer:

"0.758315 sec" is the appropriate choice.

Explanation:

The given values are:

Angular speed,

= 29 rad/s

or,

= $\frac{29}{2 \pi} \ rps$

Tire rotates,

= 3.5 times

Now,

The time interval will be:

⇒  $\Delta t=\frac{3.5}{\frac{29}{2 \pi} }$

⇒       $=\frac{2 \pi\times 3.5}{29}$

⇒       $=\frac{21.99}{29}$

⇒       $=0.758315 \ sec$