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Two balls of equal mass are projected fr...

Two balls of equal mass are projected from a tower simultaneously with equal speeds. One at angle `theta` above the horizontal and the other at the same angle `theta` below the horizontal. The path of the center of mass of the two balls is

A

a vertical straight line

B

a horizontal straight line

C

a straight line at an angle `alpha (lt0)` with horizontal

D

a parabola

Text Solution

Verified by Experts

The correct Answer is:
D
Vertical component of velocity of CM is zero. Horizontal component of CM is non-zero. Acceleration of CM is g downwards. Hence path is a parabola as shown in figure.
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