## numerical-problems-on-work-power-and-energy-physics-11

Problem 1: A force acting on an object varies with distance‘d’ as shown in the figure. Calculate the work done by the force as the…

## numerical-problem-2-work-power-and-energy-physics-11

Problem 2: A 70 kg man runs up a long flight of stairs in 4.0 seconds. The vertical height of the stair is 4.5 m.…

## numerical-problem-1-work-power-and-energy-physics-11

Problem 1: A force acting on an object varies with distance‘d’ as shown in the figure. Calculate the work done by the force as the…

## numerical-problem-3-work-power-and-energy-physics-11

Problem 3: A body of mass 2.0 kg is dropped from a rest position 5.0 m above the ground. What is its velocity at height…

## numerical-problem-4-work-power-and-energy-physics-11

Problem 4: A man pulls a trolley through a distance of 50 m by applying a force of 100 N which makes an angle of…

## numerical-problem-5-work-power-and-energy-physics-11

Problem 5: A man whose mass is 70 kg walks up to the third floor of a building which is 12 m above the ground…

## numerical-problem-10-work-power-and-energy-physics-11

Problem 10: A force of 2000 N is exerted in lifting a 100 kg mass straight up to a height of 10 m. How much…

## numerical-problem-7-work-and-energy-physics-11

Problem 7: An object of mass 1000 g falls from a height of 30 m on the sand below. If it penetrates 4 cm into…

## numerical-problem-9-work-and-energy-physics-11

Problem 9: The engine of a JF-Thunder fighter develops a thurst of 3000 N. What horsepower does it at a velocity of 600 m/s. Solution…