Two balls are thrown simultaneously in the air. The acceleration of the centre of mass of the two balls when in air

Question

Two balls are thrown simultaneously in the air. The acceleration of the centre of mass of the two balls when in air, is equal to g (acceleration due to gravity), depends in the speeds of the two balls, depends on the masses of the two balls, depends on the direction of motion of the two balls.

MARKS App · Accepted Answer

We know that, Acceleration of centre of mass a c m = m 1 a 1 + m 2 a 2 m 1 + m 2 Here, a 1 = a 2 = g (Because balls are thrown in air i.e. under the gravity) a c m = m 1 g + m 2 g m 1 + m 2 a c m = g m 1 + m 2 m 1 + m 2 a c m = g

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