Question

give the solution of this numerical.

calculate force required to impart of a car of velocity of 30m/s in 10second. starting from rest.The mass of car is 1500kg. ​

Answer 1

Answer:

When a car starts from the rest, its initial velocity is 0 and here its moving velocity is mentioned to be 30m/s.

So the difference in these two velocities is 30 – 0 = 30 m/s.

Hence, the acceleration of the car is calculated as this difference in velocities / time,

means here it is 30 / 10 = 3. 

The formula for finding the force is acceleration x mass, i.e. 1500 x 3 = 4500 Newton.