29. A volleyball player serves the ball from point A 9. 2m away from the net. Its initial velocity is Vowith e as the launch angle. If the ball is served 0.9m from the floor, and the net is 2.4m high, determinethe angle e needed to strike the other side 9.2m from the net.A. 15.59deg.B. 17.31deg.C. 19.06deg.D. 20.59deg.30. President Rosales of Republic of Chingchong ordered the launch of missiles to Red Island 1200m awayfrom the mainland. Missiles have initial speed of 188m/s and are launched horizontally. How high is mainlandChingchong above sea level?A. 198.69mB. 199.84mC. 200.05mD. 201.38m

Answered: Image /qna-images/answer/1f84d3c2-02f5-4529-8372-f6852f25c17b.jpg

30. President Rosales of Republic of Chingchong ordered the launch of missiles to Red Island 1200m away from the mainland. Missiles have initial speed of 188m/s and are launched horizontally. How high is mainland Chingchong above sea level? A. 198.69m B. 199.84m C. 200.05m D. 201.38m

30. President Rosales of Republic of Chingchong ordered the launch of missiles to Red Island 1200m away from the mainland. Missiles have initial speed of 188m/s and are launched horizontally. How high is mainland Chingchong above sea level? A. 198.69m B. 199.84m C. 200.05m D. 201.38m

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter4: Motion In Two Dimensions

Section: Chapter Questions

Problem 4.20P: A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of...

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Concept explainers

Relative Velocity

It is a measurement of an object with regards to the other object which is moving or stable or stationary. For example, if we are traveling in a bus and the bus is moving at speed of 50km/hr, then our speed is according to the nearby passenger on the bus is zero. According to them, we are not moving. But if one person standing on the ground or road observes us from outside of the bus, according to him we are moving at a speed of 50km/hr and the bus is also moving at a speed of 50km/hr. Now, the motion is recognized by the observer, it depends on a frame of reference or observer. This is motion called relative motion.

Question

29. A volleyball player serves the ball from point A 9. 2m away from the net. Its initial velocity is Vo
with e as the launch angle. If the ball is served 0.9m from the floor, and the net is 2.4m high, determine
the angle e needed to strike the other side 9.2m from the net.
A. 15.59deg.
B. 17.31deg.
C. 19.06deg.
D. 20.59deg.
30. President Rosales of Republic of Chingchong ordered the launch of missiles to Red Island 1200m away
from the mainland. Missiles have initial speed of 188m/s and are launched horizontally. How high is mainland
Chingchong above sea level?
A. 198.69m
B. 199.84m
C. 200.05m
D. 201.38m

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