(A) Let the upward direction be positive $(+)$ and the downward direction be negative $(-)$.For the first body projected upward,the acceleration is $a

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(A) Let the upward direction be positive $(+)$ and the downward direction be negative $(-)$.For the first body projected upward,the acceleration is $a_1 = -g = -10 \, m/s^2$.For the second body projected downward,the acceleration is $a_2 = -g = -10 \, m/s^2$.The relative acceleration of the first body with respect to the second is given by $a_{rel} = a_1 - a_2$.Substituting the values: $a_{rel} = (-10 \, m/s^2) - (-10 \, m/s^2) = -10 + 10 = 0 \, m/s^2$.Thus,the magnitude of the relative acceleration is $0 \, m/s^2$.

Class 11 Physics Motion in Straight Line Relative Motion in One Dimension

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$A$ body is projected vertically upward with speed $10 \, m/s$ and another at the same time with the same speed in the downward direction from the top of a tower. The magnitude of the acceleration of the first body with respect to the second is ...... $m/s^2$ (take $g = 10 \, m/s^2$).

A
$0$
B
$10$
C
$5$
D
$20$

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Motion in Straight Line

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Relative Motion in One Dimension

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Explain the concept of relative velocity and its two cases.

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$A$ body is projected vertically upward with speed $10 \, m/s$ and another at the same time with the same speed in the downward direction from the top of a tower. The magnitude of the acceleration of the first body with respect to the second is ...... $m/s^2$ (take $g = 10 \, m/s^2$).

Similar Questions

$A$ man is at a distance of $6\,m$ from a bus. The bus begins to move with a constant acceleration of $3\,m s^{-2}$. In order to catch the bus,the minimum speed with which the man should run towards the bus is $.........m s^{-1}$.

$A$ boy sitting on the topmost berth in the compartment of a train which is just going to stop at a railway station,drops an apple aiming at the open hand of his brother sitting vertically below his hands at a distance of about $2 \ m$. The apple will fall:

Two cars are travelling towards each other at a speed of $20 \,m \,s^{-1}$ each. When the cars are $300 \,m$ apart, both the drivers apply brakes and the cars retard at the rate of $2 \,m \,s^{-2}$. The distance between them when they come to rest is: (in $\,m$)

Explain the concept of relative velocity and its two cases.

Two cars are moving in the same direction with a speed of $30\ km/h$. They are separated from each other by $5\ km$. $A$ third car moving in the opposite direction meets the two cars after an interval of $4\ minutes$. What is the speed of the third car in $km/h$?

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