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Last Updated On 23-10-2022 - By Sara

A body dropped from a tower explodes into two pieces of equal mass in mid-air. Which of the following is not possible?

a)

Each part will follow parabolic path

b)

Only one part will follow parabolic path

c)

Both parts move along a vertical line

d)

One part reaches the ground earlier than the other


Question ID - 100237 :-

A body dropped from a tower explodes into two pieces of equal mass in mid-air. Which of the following is not possible?

a)

Each part will follow parabolic path

b)

Only one part will follow parabolic path

c)

Both parts move along a vertical line

d)

One part reaches the ground earlier than the other

1 Answer
5876 Votes
3537

Answer Key : (b) -

(b)

If the velocities acquired due to explosions are in vertical direction,then options (c) and (d) are possible. If one of them follows parabolic path (or acquires velocity in horizontal direction), then other also has to follow parabolic path (or acquire velocity in horizontal direction to keep the momentum zero in horizontal direction). Hence, option(b) can never be possible



Next Question :

A ball is dropped from a height of 45 m from the ground. The coefficient of restitution between the ball and the ground is 2/3. What is the distance travelled by the ball in 4th second of its motion. Assume negligible time is spent in rebounding. Let

a)

5 m

b)

20 m

c)

15 m

d)

10 m


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