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# A body is projected upwards under gravity with a speed of 15.3m/s. The maximum height which can be reached is1. 9.1m2. 21.8m3. 11.9m

4. 15.8m

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Maximum height will be attained when the final velocity will become zero.

$v^{2} -u^{2} = 2\left ( -g \right )h$

$0^{2} -15.3^{2} = 2\left ( -10 \right )h_{max}$

$h_{max } = 11.7 m$

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