Question

A car accelerates from 0 to 75 km/hr in 8 s. What is the car’s acceleration?

Answer 1

The acceleration formula is $a=\frac{v-v_0}{t}$

Plug in the values we know.

$a=\frac{75-0}{8}$

$a=\frac{75}{8}$

$a=9.375$

The car's acceleration is 9.375$\frac{m}{s^2}$

Answer 2

Step 1: divide 75 by 8
Step 2: get the answer - 75/8 = 9.375
Step 3: label the answer - 9.375 km/hr
*optional step*: estimate or round the decimal - 9.375 is rounded to 9.4 km/hr