A ball is thrown from a point O with an initialvelocity v, = 2 m/s making an angle 0o above thehorizontal as shown in the figure below. It reachesits maximum height at a point A. Concerning the xand y components of the velocity vectors, which ofthe following is true? Neglect air resistance.%3DO vo_x = VA_x = 0O None of the optionsO vo y = VA_y 2 m/sO vo y = VA y = 0O vo x = VA_x = 2 m/s

Name: A ball is thrown from a point O with an initialvelocity v, = 2 m/s ma
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Description: A ball is thrown from a point O with an initialvelocity v, = 2 m/s making an angle 0o above thehorizontal as shown in the figure below. It reachesits maximum height at a point A. Concerning the xand y components of the velocity vectors, which ofthe

The ball is thrown from the point O with the velocity of vo with the angle of θ0 above the…

Answered: A ball is thrown from a pomt velocity…

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A ball is thrown from a pomt velocity v, = 2 m/s making an an horizontal as shown in the figure E its maximum height at a point A. C and y components of the velocity ie truo? Neglect air re 11

Classical Dynamics of Particles and Systems

5th Edition

ISBN:9780534408961

Author:Stephen T. Thornton, Jerry B. Marion

Publisher:Stephen T. Thornton, Jerry B. Marion

Chapter2: Newtonian Mechanics-single Particle

Section: Chapter Questions

Problem 2.6P: In the blizzard of ’88, a rancher was forced to drop hay bales from an airplane to feed her cattle....

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In the blizzard of ’88, a rancher was forced to drop hay bales from an airplane to feed her cattle. The plane flew horizontally at 160 km/hr and dropped the bales from a height of 80 m above the flat range, (a) She wanted the bales of hay to land 30 m behind the cattle so as to not hit them. Where should she push the bales out of the airplane? (b) To not hit the cattle, what is the largest time error she could make while pushing the bales out of the airplane? Ignore air resistance.
Check Your Understanding If the two golf shots in Example 4.9 were bunched at the same speed, which shot would have the greatest range? When we speak of the range of a projectile on level ground, we assume R is very small compared with the circumference of Earth. If, however, the range is large, Earth curves away below the projectile and the acceleration resulting from gravity changes direction along the path. The range is larger than predicted by the range equation given earlier because the projectile has father to fail than it would on level ground, as shown in Figure 4.17, which is based on a drawing in Newton’s Principia. If the initial speed is great enough, the projectile goes into orbit. Earth’s surface drops every 8000 m. In 1 s an object falls 5 m without a resistance. Thus, if an object is given a horizontal velocity of 8000 m/s (or 18,000 mi/hr) near Earth’s surface, it will go into orbit around the planet because, the surface continuously falls away from object Thu is roughly the speed of the Space Shuttle in a low Earth orbit when it was operational, or any satellite in a low Earth orbit. These and other aspects of orbital motion, such as Earth’s rotation, are covered in greater depth in Gravitation. Figure 4.17 Projectile to satellite. In each case shown here, a projectile is launched from a very high tower to avoid air resistance. With increasing initial speed, the range increases and becomes longer than t would be on level ground because Earth curves away beneath its path. With a speed of 8000 m/s, orbit is achieved.
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