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Answer the following questions: Determ...

Answer the following questions:
Determine the amount of work done when an object is displaced at an angle of `30^@` with respect to the direction of the applied force.

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TARGET PUBLICATION-WORK AND ENERGY-EXERCISE
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  5. A stone having a mass of 250 gm is falling from a height. How much kin...

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  7. A train approaching a station reduces its speed from 180 km/hr to 90 k...

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  9. 500 kg water isstored in the overhead tank of a 10 m high building.Cal...

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  10. A man drops a 20 kg object from the top of a 10m high building . What ...

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  11. An object of mass 2 kg is thrown downwards. What is the work done by h...

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  12. Solve the following examples: If the energy of a ball falling from a ...

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  14. What is the power of an object which does 600 joules of work in 1 minu...

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  15. Swaralee takes 40 s to carry & bag weighing 20 kg to a height of 5 m. ...

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  16. Solve the following examples: An electric pump has 2 kW power. How mu...

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  18. Solve the following examples: If a 1200 W electric iron is used daily...

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