Question 2 :
A motor of 100 H.P. moves a load with a uniform speed of 72 km/hr. The forward thrust applied by the engine on the car is <br>

Question 3 :
You lift a heavy book from the floor of the room and keep it in the book–shelf having a height <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5e9411337b6ff3012e76eca8"> . In this process you take <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5e9411337b6ff3012e76eca9"> . The work done by you will depend upon

Question 4 :
A force of 20N acts on a body and the body moves through 1m at an angle of $45^0$ to the direction of the force.The work done by the force is_____

Question 5 :
Two bodies moving towards each other collide and move away in opposite directions. There is some rise in temperature of bodies because a part of the kinetic energy is converted into

Question 8 :
Work is negative when the angle between the force and displacement is