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Subject :NSO    Class : Class 5

A ball of mass ‘m’ was dropped from height ‘h’ on 3 different planets X, Y and Z one at a time. The given graph shows the comparative account of time taken by the ball to reach the surface of these planets when dropped from the same height.Which of the following holds true regarding this?

AThe ball will weigh heaviest on planet X and lightest on planet Y.
BIt will be easier to lift a load on planet X as compared to planets Y and Z.
CThe layer of atmosphere is most likely to be absent on planet Y but present on planets X and Z.
DBoth A and C

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