Question

car is travelling on a level Highway at a speed of 15 metres per second a braking force of 3000 Newton bring the car to a stop in 10 second the mass of the car is​

Answer 1

Answer:

2000kg

Explanation:

Given, u = 15m/s

           F = -3000N (as it is a braking force, i.e., its direction is opposite to the direction of motion of the car)

            v= 0m/s (since it comes to rest)

            t = 10s

We know, v= u + at

   Thus, a= (v-u)/t = 0-15/10 = -1.5m/s^2

Let the required mass be m.

Also, F= ma [From Newton's Second Law]

     -3000 = -1.5m

    => m= 3000/1.5 = 2000

Thus, mass of the car is 2000kg

Answer 2

Answer:

dont know the answer dear