An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass 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 Since they were dropped and no other external force is acting on them, both spheres have the same acceleration which is the acceleraton due to gravity.