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A catapult launches rocks with an initial speed of 60 m/s. What should the launch angle be to hit a target (at the same height) 320 m away? 45 deg 59.7 deg 30.3 deg 30.3 or 59.7 deg

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter3: Vectors

Section: Chapter Questions

Problem 62PQ: A glider aircraft initially traveling due west at 85.0 km/h encounters a sudden gust of wind at 35.0...

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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.

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please explain how to get correct answer!

A catapult launches rocks with an initial speed of 60 m/s. What should the
launch angle be to hit a target (at the same height) 320 m away?
45 deg
59.7 deg
30.3 deg
30.3 or 59.7 deg

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