A car of mass 800 kg is travelling at a speed of 40 km/h on a straight road. A force of 1000 N is applied on it in the direction of its velocity for 12 s. Which one among the following is the final speed of the car?

A car weighs 1000 kg. It is moving with a uniform velocity of 72 km/h towards a straight road. The driver suddenly presses the brakes. The car stops in 0.2s. The retarding force applied on the car to…

Which one of the following statements about speed and velocity is correct?

Weight and mass of an object are defined with Newton's laws of motion. Which among the following is true ?

An electron and a proton starting from rest get accelerated through potential difference of 100 kV. The final speeds of the electron and the proton are Ve and Vp respectively. Which one of the follow…

Which one of the following about different frictional forces is correct?