3945 Assume that a free-fall model applies. Solve these exercisesby applying Formulas
Chapter 5, Problem 45(choose chapter or problem)
Assume that a free-fall model applies. Solve these exercises by applying Formulas (15) and (16). In these exercises take \(g=32 \mathrm{ft} / \mathrm{s}^{2}\) or \(g=9.8 \mathrm{ft} / \mathrm{s}^{2}\), depending on the units.
A model rocket is fired vertically upward with an initial velocity of 49 m/s from a tower 150 m high.
(a) How long will it take for the rocket to reach its maximum height?
(b) What is the maximum height?
(c) How long will it take for the rocket to pass its starting point on the way down?
(d) What is the velocity when it passes the starting point on the way down?
(e) How long will it take for the rocket to hit the ground?
(f) What will be its speed at impact?
Equation Transcription:
Text Transcription:
g = 32 ft/ s^2
g = 9.8 ft/s^2
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