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Q1) The skateboard rider leaves the ramp at A with an initial velocity v, at a 30° angle. If he strikes the ground at B, determine v, and the time of flight (Ans, v6.49 m/s t-0.89 sec)

Q1) The skateboard rider leaves the ramp at A with an initial velocity v, at a 30° angle. If he strikes the ground at B, determine v, and the time of flight (Ans, v6.49 m/s t-0.89 sec)

Elements Of Electromagnetics
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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Q1) The skateboard rider leaves the ramp at A with an initial velocity v, at a 30° angle. If he strikes the ground at B, determine v, and the time of flight, (Ans, v,=6.49 m/s t-0.89 sec) Q2) If the motorcycle leaves the ramp traveling at 110 ft/s, determine the height h ramp B must have so that the motoreyele lands safely (Ans. h=14.7 ft) 110 s, 3 ft 350 ft Q3) It is observed that the time for the ball to strike the ground at B is 2.5 s. Determine the speed v, and angle 0, at which the ball was thrown. (Ans. v, =23.2 m/s, 0,= 30.5) 12 m 50 m Q4) The ball i s thrown off the top of the building. If it strikes the ground at B in 3 s, determine the initial velocity v, and the inclination angle 0, at which it was thrown. Also, find the magnitude of the ball's velocity when it strikes the ground, (Ans. 0,-49.4, v=30.7 ft/s, v,- 76 ft/s, 0,=57.6) 75 ft 60 ft
Transcribed Image Text:Q1) The skateboard rider leaves the ramp at A with an initial velocity v, at a 30° angle. If he strikes the ground at B, determine v, and the time of flight, (Ans, v,=6.49 m/s t-0.89 sec) Q2) If the motorcycle leaves the ramp traveling at 110 ft/s, determine the height h ramp B must have so that the motoreyele lands safely (Ans. h=14.7 ft) 110 s, 3 ft 350 ft Q3) It is observed that the time for the ball to strike the ground at B is 2.5 s. Determine the speed v, and angle 0, at which the ball was thrown. (Ans. v, =23.2 m/s, 0,= 30.5) 12 m 50 m Q4) The ball i s thrown off the top of the building. If it strikes the ground at B in 3 s, determine the initial velocity v, and the inclination angle 0, at which it was thrown. Also, find the magnitude of the ball's velocity when it strikes the ground, (Ans. 0,-49.4, v=30.7 ft/s, v,- 76 ft/s, 0,=57.6) 75 ft 60 ft
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