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A ball whose density is  falls into water from a height of 9 cm. To what depth does the ball sink?

a)

9 cm

b)

6 cm

c)

4.5 cm

d)

2.25 cm


Question ID - 57233 | Toppr Answer

A ball whose density is  falls into water from a height of 9 cm. To what depth does the ball sink?

a)

9 cm

b)

6 cm

c)

4.5 cm

d)

2.25 cm

1 Answer - 5876 Votes

3537

Answer Key : (b) -

(b)

The velocity of ball before entering the water surface

When a ball enters into water, due to upthrust of water the velocity of ball decreases (or retarded)

The retardation,

If  be the depth upto which ball sink, then



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