Question #102613

A bullet is fired vertically upward with an initial velocity of 98m/s from the top of a building 100m high. Find

1. The maximum height reached above the ground

2. The total time before reaching the ground

3. The velocity on landing

1. The maximum height reached above the ground

2. The total time before reaching the ground

3. The velocity on landing

Expert's answer

1)

2)

"t_2=\\sqrt{\\frac{2H}{g}}=\\sqrt{\\frac{2(590)}{9.8}}=11\\ s"

"T=t_1+t_2=10+11=21\\ s"

3)

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