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3 Mechanics

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Question 131

A particle is projected vertically upwards from a point O O\,O with speed 19.6 m s-1. It returns to OOO. Model the particle as moving freely under gravity and use g=9.8 m s−2g=9.8\text{ m s}^{-2}g=9.8 m s−2.

a.

Find the greatest height of the particle above OOO.

[3]
b.

Find the total time for which the particle is in motion.

[2]
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3 Mechanics Questions

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