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Motion in Straight Line

Relative motion in 2D

Two stones are thrown up simultaneously from the edge of a cli

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Solving time: 3 mins

Two stones are thrown up simultaneously from the edge of a cliff $240 m$ high with initial speed of $10 m / s$ and $40 m / s$ respectively. Which of the following graph best represents the time variation of relative position of the second stone with respect to the first? (Assume stones do not rebound after hitting the ground and neglect air resistance, take $g = 10 m / s^{2}$ ) (The figures are schematic and not drawn to scale)

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Updated on: Sep 16, 2023

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Two stones are thrown up simultaneously from the edge of a cliff

240 m

high with initial speed of

10 m / s

and

40 m / s

respectively. Which of the following graph best represents the time variation of relative position of the second stone with respect to the first? (Assume stones do not rebound after hitting the ground and neglect air resistance, take

g = 10 m / s^{2}

) (The figures are schematic and not drawn to scale)

8 mins ago

Discuss this question LIVE

8 mins ago

Text solutionVerified

Till both are in air (From

t = 0

t = 8

second)

Δ x = x_{2} - x_{1} = 30 t

\Rightarrow Δ x \propto t

When second stone hits ground and first stone is in air.Hence

Δ x

decreases.

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Question Text	Two stones are thrown up simultaneously from the edge of a cliff $240 m$ high with initial speed of $10 m / s$ and $40 m / s$ respectively. Which of the following graph best represents the time variation of relative position of the second stone with respect to the first? (Assume stones do not rebound after hitting the ground and neglect air resistance, take $g = 10 m / s^{2}$ ) (The figures are schematic and not drawn to scale)
Updated On	Sep 16, 2023
Topic	Motion in Straight Line
Subject	Physics
Class	Class 11
Answer Type	Text solution:1 Video solution: 11
Upvotes	1087
Avg. Video Duration	11 min

Text solutionVerified

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