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A coconut is hanging on a tree at a height of 15 m from the ground. A body launches a projectile vertically upwards with a velocity of 20 m/s. After what time will the projectile pass by the coconut. Explain the two answers you get in this problem.​

Answer» TION:distance of coconut from the grounds=15mu=20sma=9.8s2mfroms=ut+21at215=20t−2110t23=4t−t2⟹t2−4t+3=0⟹(t−1)(t−3)=0⟹t=1,3at time t=1 second PROJECTILE passes the coconut by GOING UPWARDS and t=3 seonds it passes the coconut COMING downwards


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