Which of the following can do more work?
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Physics GK · all questionsWork, Energy and Power
Work, Energy and Power
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Mechanical energy is?
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Work present if there is-
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A compressed spring possesses more energy than a spring of normal length because the compressed spring has-
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Mass/Volume = ?
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If a man pulls a trolly by applying force of 50N and trolly is displaced 30m. What is work done?
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The following particles move with same kinetic energy. Which of them has maximum momentum?
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An object moves at a constant speed when no acting on it.
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At the time of releasing an arrow in a drawn bow, the potential energy of the bow change
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Which of the following physical units changes or tends to change the state of rest or uniform motion of an object?
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When an object of 11 kg is at a height of 6 m from the ground, then find the energy contained in it? (g = 9.8ms-2)
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Which one of the following is the value of 1 kwh of energy converted into joules?
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The conversion of mechanical energy into electrical energy does not occur in
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A car is running at a speed of 72 km/h. It takes 4 seconds to stop after applying the brakes. If the mass of the car is 1000 kg. What is the magnitude of the force exerted by the brake?
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The energy of 9800J was used to lift the 70kg weight at which height the weight was lifted?
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A 30 gram bullet is fired horizontally with a velocity of 150 ms-1 from a 2 kg pistol. What is the expected velocity of the pistol?
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Formula for gravitational potential energy is-
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The kinetic energy of an object of mass m moving at a speed of 5 ms-1 is 25J. What will be its kinetic energy when its speed will be double?
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Product of momentum expressed as?
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Despite . . . . . . . . working on a substance, the quality to not change in shape is called . . . . . . . .
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