A man with a box on his head is climbing...

A man with a box on his head is climbing up a ladder. The work done by the man on the box is

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A man of mass 20 kg is carrying a mass of 3 kg on his head. Calculate the work done by the man in moving a distance of 10 m up an incline of 1 in 5 ?

A person holds a bucket of weight 60N . He walks 7m along the horizontal path and then climbs up a vertical distance of 5m. The work done by the man is

A person holds a bucket of weight 60 N. He walks 7 m along the horizontal path and then climbs up a vertical distance of 5 m. The work done by the man is

In a children's park, there si a slide which has a total length of 10 and a height of 8.0 m figure. Vertical ladder are provided to reach the top. A boy weighting 200 N climbs up the ladder to the top of the slide and slides down to the ground. The averages friction offered by the slide is three tenth of his weight. Find a. the work done by the ladder on the boy as he goes up. b. the work done by the slide on the boy as he comes down. Neglect any work done by forces inside the body of the boy.

Consider the following statements. Work is not done, when: 1. a man is walking on a horizontal road. 2. a man is climbing up a hill. 3. a man with a load on his head is walking on a horizontal road. 4. moon is revolving round the earth. Which of the statements given above are correct?

A man of mass 80kg pushes box of mass 20kg horizontaly. The man moves the box with a constant acceleration of 2 m//s^(2) but his foot does not slip on the ground. There is no friction between the box and the ground. There is no friction between the box and the ground. whereas there is sufficient friction between the man's foot and the ground to prevent him from slipping. Assertion:- The force applied by the man on the box is equal and opposite to the force applied by the force applid by the box on the man. Reason:- Friction force applied by the ground on the man is 200N.

HC VERMA-WORK, ENERGY AND POWER-QUESTION BANK

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