Question

A car accelerates from O to 60. miles per hour in 5.2 seconds. Calculate acceleration in m/s seconds. Calculate acceleration in m/s^2.

Answer 1

`a=5.515(m)/(s^(2) )`

Step-by-step explanation:

The first thing we will do is convert the units. Miles per hour to meters per second.

`1 mile=1609.34 mts.`

`1 hora=3600 segundos`

Performing the operations

`60(mile)/(h)=((60*1609.34))/(3600)(m)/(s)=26.822(m)/(s)`

Now, we will use the acceleration formula

`a=(v)/(t)`

Where v = speed and t = time

Substituting the values ​​of
`t=5.2s`

`a=(v)/(t) =(26.822(m)/(s) )/(5.2s) =5.15(m)/(s^(2) )`