5. Two model rockets, as shown in Figure 5, are fired simultaneously from a ledge with the heights of h = 100 m with initial velocities of VOA = VOB = 200 m/s, at initial angles of A = 45° and 0B = 75° with respect to the horizontal. Determine: (a) The time when the projectile A will reach the position that forms an angle α = 20° below the horizontal. (b) The velocity of projectile A at this instant. (c) The velocity of projectile B at this instant and its angle with horizontal. (d) The relative velocity of projectile A with respect to B at this instant. (e) Which of the rockets will hit the ground first? B th A α Figure 5: Projectile motion of rockets
5. Two model rockets, as shown in Figure 5, are fired simultaneously from a ledge with the heights of h = 100 m with initial velocities of VOA = VOB = 200 m/s, at initial angles of A = 45° and 0B = 75° with respect to the horizontal. Determine: (a) The time when the projectile A will reach the position that forms an angle α = 20° below the horizontal. (b) The velocity of projectile A at this instant. (c) The velocity of projectile B at this instant and its angle with horizontal. (d) The relative velocity of projectile A with respect to B at this instant. (e) Which of the rockets will hit the ground first? B th A α Figure 5: Projectile motion of rockets
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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Question
Two model rockets, as shown in Figure 5, are fired simultaneously from a ledge with the heights of h = 100 m with initial velocities of Von = V = 200 m/s, at initial angles of 0 = 45° and 0в = 75° with respect to the horizontal. Determine:
(a) The time when the projectile A will reach the position that forms an angle a = 20° below the horizontal.
(b) The velocity of projectile A at this instant.
(c) The velocity of projectile B at this instant and its angle with horizontal.
(d) The relative velocity of projectile A with respect to B at this instant.
(e) Which of the rockets will hit the ground first?
Note: please consider everything. And show step by step working out!. On occasions I recieve wrong answers!. So kindly please double check the final answers!.
Transcribed Image Text:5. Two model rockets, as shown in Figure 5, are fired simultaneously from a ledge with the heights
of h = 100 m with initial velocities of VOA = VOB = 200 m/s, at initial angles of A = 45° and
0B = 75° with respect to the horizontal. Determine:
(a) The time when the projectile A will reach the position that forms an angle α = 20° below the
horizontal.
(b) The velocity of projectile A at this instant.
(c) The velocity of projectile B at this instant and its angle with horizontal.
(d) The relative velocity of projectile A with respect to B at this instant.
(e) Which of the rockets will hit the ground first?
B
th
A
α
Figure 5: Projectile motion of rockets
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