An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass is 3.5 kg. Both spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same
A
acceleration
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B
momenta
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C
potential energy
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D
kinetic energy
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Solution
The correct option is A acceleration The iron sphere and the aluminium sphere have different masses. Yet both will fall under the acceleration due to gravity g=9.8m/s2. In a free fall, the acceleration does not depend on the mass of the object.