Question

A boy moving with initial velocity 5 for 5 minutes suddenly stops to see a sale. What is his acceleration?​

Answer 1

Answer:

$a = \frac{vf - vi}{t }$

then by this

$a = \frac{0 - 5}{5 \times 60}$

$a = \frac{ - 5}{300}$

$a = - 0.166$

the negative sign shows retardation or decrease in acceleration.