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प्रश्न
An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass 3.5 kg. Both the spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same :
पर्याय
acceleration
momentum
potential energy
kinetic energy
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उत्तर
Momentum, potential energy and kinetic energy depend on the mass of the body. So, the answer is acceleration as it is independent of mass.
Therefore, the answer is,
(a) Acceleration
संबंधित प्रश्न
A metal ball of mass 2 kg is allowed to fall freely from rest from a height of 5 m above the ground. Taking g = 10 m s−2, calculate:
- the potential energy possessed by the ball when it is initially at rest.
- the kinetic energy of the ball just before it hits the ground?
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What kind of energy is possessed by the following?
A stone kept on roof-top _______________
Fill in the blank with suitable word :
The sum of the potential and kinetic energies of a body is called __________ energy.
Give two examples where a body possesses both, kinetic energy as well as potential energy.
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A stone is thrown upwards as shown in the diagram. When it reaches P, which of the following has the greatest value of the stone?
Fill in the blanks with suitable words :
The principle of ___________ of energy says energy can be transformed from one form to another, but it cannot be ___________ or ___________.
What kind of energy transformations take place at a coal-based thermal power station?
How much energy does a 100 W electric bulb transfer in 1 minute?
