Answer question no. A
Q.a) A father and son had to push their car with all their might to make it move as it had stalled in the middle of the road .Once it started the push required to keep the car rolling was much smaller. Explain.

Dear Student ,
When they started to push the car the force required to push is greater as the car is in the state of rest and they have to move it overcoming the frictional force .So they need much more force to move the car when the car started to move on the road .when the car started to move on the road then the car moves with a certain speed and the force required by the father and son to push it at this time will be smaller than that .

Hope this helps you to understand this .
Regards

  • 0
After deducting 10/ from a sum and then 20/from the remainder 3600are left find the original
  • 1
What are you looking for?