Question

If brakes are applied to a car to produce acceleration of 6ms^-2 in opposite direction to motion. If car takes 25 s to stop. Calculate the distance travelled.



plz ans. fast and no stupid answers... Plz ans. only if u exactly know the answer.

Bt ans. fast

Answer 1

Velocity = 0, Given acceleration = -6m/s^2, t = 25s.

We know that v = u + at

                         0 = u (-6) * 25

                          u = 150 m/s.

Now,

The distance traveled s = ut + 1/2at^2

                                        = 150 * 25 + 1/2 * (-6) * (25)^2

                                        = 3750 - 1875

                                        = 1875.


The distance traveled = 1875m.


Hope this helps!

Answer 2

Hi,

Please see the attached file !


Thanks