Question

If two balls of same masses are dropped on sand, the depths of penetration is same if 1- Heavier ball is dropped faster than lighter ball 2- Lighter ball is dropped faster than heavier ball 3- The product 'mv' is same for both bodies 4- None of the above

Answer 1

Answer:

Answer is 3

because:

● in (1) if havier ball is drooped fast

it's penetration in the soil would be more.

● in (2) in this the opposite lighter

ball would penetrate more.

● in (3) if the product 'mv' is same for

both bodies then the speed and wheigt will balance each other then

the penetration would be same.

● If (3) is correct then this is wrong

so (4) is also wrong

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