A 7500-kg rocket blasts off vertically from the launch pad with a constant upward acceleration of 2.25 m/s2 and feels no appreciable air resistance. When it has reacheda height of 525 m, its engines suddenly fail; the only force acting on it is now gravity. (a) What is the maximum height this rocket will re launch pad? (b) How much time will elapse after engine faihure before the rocket comes crashing down to the launch pad, and how fast will it be moving just before it crashes? (c) Sketch a-t, vy-t, and y-t graphs of the rocket's motion from the instant of blast-off to the instant just before it strikes the launch pad.
A 7500-kg rocket blasts off vertically from the launch pad with a constant upward acceleration of 2.25 m/s2 and feels no appreciable air resistance. When it has reacheda height of 525 m, its engines suddenly fail; the only force acting on it is now gravity. (a) What is the maximum height this rocket will re launch pad? (b) How much time will elapse after engine faihure before the rocket comes crashing down to the launch pad, and how fast will it be moving just before it crashes? (c) Sketch a-t, vy-t, and y-t graphs of the rocket's motion from the instant of blast-off to the instant just before it strikes the launch pad.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A 7500-kg rocket blasts off vertically from the launch pad with a constant upward acceleration of 2.25 m/s2 and feels no appreciable air resistance. When it has reacheda height of 525 m, its engines suddenly fail; the only force acting on it is now gravity. (a) What is the maximum height this rocket will re launch pad? (b) How much time will elapse after engine faihure before the rocket comes crashing down to the launch pad, and how fast will it be moving just before it crashes? (c) Sketch a-t, vy-t, and y-t graphs of the rocket's motion from the instant of blast-off to the instant just before it strikes the launch pad.
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