Question

Q2. (i) Write the relation between the commercial unit and the S.I unit of energy?

(ii) In the game of Tug of War which Team does the work and what is the nature of the work?

(iii) A person is holding a bucket by applying a force of 10N.He moves a horizontal distance of

5m and then climbs up a vertical distance of 10m. Find the total work done by him.

(iv)A machine can take out 1000kg of mud per hour from a depth of 100m.Calculate the Power.

(v) By what factor kinetic energy changes when speed is made half.

(vi) If an electric iron of 1200W is used for 30mins every day, find the electric energy consumed in the month of June

Answer 1

Answer:

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