Question

Q11. A person started his motion with a
velocity of 15 m/s. If his velocity
decreases at a constant rate of 0.5
m/s2, find out the time taken by him to
come to rest.​

Answer 1

$\huge\fcolorbox{red}{cyan}{30\:sec}$

Explanation:

• Initial Velocity(u) => 15 m/s
• Final Velocity (v) => 0 m/s
• Acceleration(a) => -0.5 m/s
• Time taken (t) = ?

First Equation Of Motion :-

$\large\fbox\color{purple}{v=u+at}$

$=>\bf{Lets\:Put\:the\:values} \\ => 0=15+(-0.5\times t) \\ =>0=15-0.5t \\ =>-15 = -0.5t \\ => t = \frac{-15}{-0.5}\\=>\boxed{t=30}$

Hope it helped

Answer 2

Answer:

30 sec

Explanation:

pls mark me brainlist

hope it's help u