Question

A driver decreases the speed of a car from 25m/s ti 10m/s in 5 second. Find the acceleration of a car.

Answer 1

u = 25m / s

v = 10m / s

t = 5s

a = v -u /t


10m/ s -25m/ s / 5s


-15 m/ s/ 5 s

a = -3 m/ s²


hope it helps you !!!


thanks Ranjankumar

Answer 2

$\huge \red{hello}$
$\huge \green{your \: answer - - - - - }$

$\huge \pink{given}$

Initial velocity of car (u) = 25 m/s

Final velocity of car (v) = 10 m/s

Time taken (t) = 5 s

$\pink{formula \: \: \: \: \: a \: = \frac{v - u}{t} }$

=> a= 10-25/5 m/S2

=> a= -3 m/s2

$\huge \orange{thus}$

The acceleration of the car is -3m/s2 or has a retardation of 3 m/s2.

$\red{answer \: = - 3m \: per \: {sec}^{2} }$

$\blue{i \: hope \: it \: helps \: u}$
$\huge \red{thank \: you}$