An iron sphere of mass 10kg has the same


An iron sphere of mass $10 \mathrm{~kg}$ has the same diameter as an aluminium sphere of mass is $3.5 \mathrm{~kg}$. Both spheres are dropped simultaneously from a tower.

When they are $10 \mathrm{~m}$ above the ground, they have the same

(a) acceleration

(b) momenta

(c) potential energy

(d) kinetic energy.


(a). Freely falling bodies moves with constant acceleration.

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