Question

a car moving with a speed of 90 kilometre per hour was brought to rest by the application of brake in 10 seconds how far did the car travel after the brakes were applied ​

Answer 1

Answer:

According to the data.

As we know that A movement of car with their speed is 90 kilometre / hour!

this speed is initial velocity of car

initial velocity of car = 90k/h = I(v)

we have to convert into the m/s

so the velocity will be 25 m/s

final velocity is not shown in the data .

so final velocity will be 0

final velocity of car = 0 = F(v)

time taken (t) = 10 sec

( application of break 10 sec)

the displacement of car is given by specific equation which are shown below :

By the equation s = [I(v) +F(v)/2] × t

Distance traveled

= [0+25 /2] × 10 = 125 m

the displacement of car is 125 m

thanks...