Question

Suppose you increase your walking speed from 6s to 12 m/s in a period of 2 s. What is acceleration

Answer 1

As we know that acceleration is given as

$a = \frac{v_f - v_i}{t}$

here we know that

$v_i = 6 m/s$

$v_f = 12 m/s$

$\Delta t = 2 s$

now we will have

$a = \frac{12 - 6}{2}$

$a = 3 m/s^2$

so acceleration will be 3 m/s^2