How Fast Can You Move 3.45 Meters on Tile with Different Footwear?

[Megatron20]

To meet a U.S. Postal Service requirement, employees' footwear must have a coefficient of static friction of 0.5 or more on a specified tile surface. A typical athletic shoe has a coefficient of 0.750. In an emergency, what is the minimum time interval in which a person starting from rest can move 3.45 m on a tile surface if she is wearing the following footwear?
(a) footwear meeting the Postal Service minimum


(b) a typical athletic shoe

 

[tiny-tim]

Welcome to PF!

Hi Megatron20! Welcome to PF!

Show us what you've tried, and where you're stuck, and then we'll know how to help!

 

[Megatron20]

The problem is that i have no idea where to even start tiny tim!

 

[tiny-tim]

use one of the standard constant acceleration equations …

what do you get?​