Question

An airplane increase s it's speed at the average rate of 15m/s2.how much time does it take to increase it's speed from 100m/s to 160m/s

Answer 1

$\large \mathbb {ANSWER}$

$\sf{ \underbrace{Given}}:-$

Initial velocity (u) = 100 m/s

Final velocity (v) = 160 m/s

Acceleration (a) = 15 m/s²

$\sf {\underbrace{To \: find}}:-$

Time taken (t) = ?

$\sf{ \underbrace{Solution}}:-$

$\star~~ \boxed{ \rm{t = \frac{v - u}{a} }}$

$⇢ \sf t = \dfrac{160 - 100}{10}$

$⇢ \sf t = \dfrac{60}{15}$

$\therefore \: \sf{ \underline{ t = 4 \: seconds}}$