ï»¿ Two stones are thrown up simultaneously from the edge of a cliff 200 m high withÂ initial speeds of 15 m s-1and 30 m s-1. Verify that the graph shown in Fig. 3.27Â correctly represents the time variation of the relative position of the second stoneÂ with respect to the first. Neglect air resistance and assume that the stones do notÂ rebound after hitting the ground. Take g = 10 m s-2. Give the equations for theÂ linear and curved parts of the plot. from Physics Motion in Straight Line Class 11 Manipur Board

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Two stones are thrown up simultaneously from the edge of a cliff 200 m high withÂ initial speeds of 15 m s-1and 30 m s-1. Verify that the graph shown in Fig. 3.27Â correctly represents the time variation of the relative position of the second stoneÂ with respect to the first. Neglect air resistance and assume that the stones do notÂ rebound after hitting the ground. Take g = 10 m s-2. Give the equations for theÂ linear and curved parts of the plot.

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What is the most essential thing to study the motion of a body?

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Is absolute rest or absolute motion possible?

Absolute rest and absolute motion is not possible because there is no point in the universe which is at rest and can be taken as point of reference. The planet Earth is in continuous motion.
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What is rest?

When an object does not change its position with time, with respect to it's surroundings. In such a case the object is said to be at rest.
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When an object changes it's position with time, with respect to it's surroundings, the object is said to be in motion.
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