Two bricks, one red and one white, are released from the top of the building. Th

Question

Two bricks, one red and one white, are released from the top of the building. The red brick, which weighs twice as much as the white brick, is dropped from rest, while the white brick is thrown staright up into the air. Which statement is true regarding this situation during the time when both bricks are in the air?

a) The two bricks accelerates at the same rate

b) The red brick accerlerates faster than the white brick

c) The white brick accelerates faster than the red brick

d) The bricks have the same magnitude of accerleration, but the direction of the acceleration is not always the same

e) The two bricks have the same magnitude of acceleration except for the instant when the white brick reaches its maximum height

Explanation / Answer

When the two bricks are in air, only accleration acting on both is acceleration due to gravity g.

Keep in mind that the direction of 'g' is always in the downward direction whatever the position of the objects.

Value of 'g' does not depend on mass.

So, in the given statements, only first statement (a) 'The two bricks accelerates at the same rate' is the TRUE statement.

Rest all are False.

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