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PHYSICS [1 Mark Question Answer]

Motion in One Dimension · ICSE STD 9 (ICSE - English Medium). 2 questions.

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[1 Mark Question Answer]

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2 questions · timed · auto-graded

Question 11 Mark
A body falls freely downward from a certain height. Show graphically the relation between the distance fallen and square of time. How will you determine 'g' from the graph?
Answer
For a freely falling body, the displacement is directly proportional to the square of time. By knowing the slope of displacement Vs. square of time graph, we can find the acceleration due to gravity.
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Question 21 Mark
Give an example of an accelerated body, moving with a uniform speed.
Answer
When a body moves over a circular path with constant speed, then body is said to be accelerated. Acceleration is produced in the body due to continuous change in its direction.
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[1 Mark Question Answer] - PHYSICS STD 9 Questions - Vidyadip