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Motion in a Straight Line

Section: Physics

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Question : 4 of 119

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A paratrooper jumps from an aeroplane and opens a parachute after 2 s of free fall and starts deaccelerating with 3m∕s2. At 10 m height from ground, while descending with the help of parachute, the speed of paratrooper is 5m∕s. The initial height of the airplane is ____ m.
(g=10m∕s2)

[23 jan 2026 Shift 2]

92.5
62.5
20
82.5

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