Question

A scooter was moving on astraight road with velocity 100m/sec,it's velocity is changing at constant rate ,after 50sec,it stop find acceleration.

Answer 1

Answer:

$a = - 2ms {}^{ - 2}$

Explanation:

$vi = 100 ms {}^{ - 1}$

$vf = 0$

$t = 50s$

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

$a = \frac{0 - 100}{50}$

$a = - \frac{100}{5} ms {}^{ - 2}$

$a = - 2ms {}^{ - 2}$