Suppose that the acceleration of a model rocket is proportional to the difference between 100 ft/sec and the rocket's velocity. If it is initially at rest and its initial acceleration is 150 ft/sec2, how long will it take to accelerate to 80 ft/s

Question

Emery Gomez

Physics

25 April, 16:00

Suppose that the acceleration of a model rocket is proportional to the difference between 100 ft/sec and the rocket's velocity. If it is initially at rest and its initial acceleration is 150 ft/sec2, how long will it take to accelerate to 80 ft/s

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Sydnee Branch · Answer 1

initial velocity, u = 0

final velocity, v = 80 ft/s

acceleration, a = 150 ft/s²

Let the time taken is t.

v = u + at

80 = 0 + 150 x t

t = 0.53 second