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MBD-WORK, ENERGY AND POWER-Example
- What is law of conservation of mass?
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- If the force acting on the object is not in the direction of motion th...
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- What is work ? How can you calculate it ? Also give the unit of work.
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- Show by giving an example that if force acting in the body does not pr...
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- A stone tied to one end of string is moved in a circle. How much work ...
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- What is power ? Write its SI unit also.
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- Prove by an experiment that mechanical energy can be transformed into ...
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- Differentiate between Potential Energy and Kinetic Energy.
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- A horse and a dog are running with the same velocity- If the mass of h...
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- Two masses m and 2m are dropped from height h and 2h. On reaching the ...
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- Two objects having same mass 'm' are moving with velocities v and 2v. ...
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- A man drops a 10 kg rock from the top of a 20 m ladder. What will be i...
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- A rocket of 3 xx10^6 kg mass takes off from a launching pad and acquir...
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- An electric heater of 1000W is used for 2 hours a day. What is the cos...
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- The power of a motor pump is 5 kW. How much water per minute the pump ...
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- Calculate the electricity bill amount for the month of November of a f...
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- A person carrying 10 bricks each of mass 2.5 kg. on his head moves to ...
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- A car of 1000 kg moving with a velocity of 30 m//s stops with uniform ...
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- A car is moving with a speed of 54 km//h. What will be the kinetic ene...
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- 1 Joule of energy is used for one heart beat. Calculate the power of t...
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