A girl of mass 48kg is rescued from a building fire by leaping into a fire fighters net.the window from which she leapt was 12m above net.she lands in the net so that she brought to a complete stop in 0.45s .during this interval find change in momentum,impulse of the net due to the girl and average force on the net due to the girl.
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Momentum by taking g=10m/s^2
216 kgm/s
Momentum by taking g=9.8m/s^2
211.68 kgm/s
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