How high is a building if it takes 9 seconds for an object to hit the floor? Pretend the objectwas dropped from the rooftop and a man was holding the ball at a height of 1 meter before letting itgo.A bomb is dropped from a plane 300m above ground. Ignoring the air resistance, calculate the(a) time that it takes before hitting the ground, (b) velocity of the impact.

time, t = 9 seconds man holding the ball at a height of 1m

Answered: How high is a building if it takes 9…

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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During the siege of Constantinople that led to its conquest by the Ottomans in 1453, the Hungarian engineer Orban built a set of bombards (primitive cannon) to throw enormous stones at the city to breach its walls. The largest of these could throw a 300 kg stone a distance x = 2 km. Assume that the stone was launched at an angle of 0 = 45 degrees above the horizontal; in the absence of air resistance, this gives the largest range. a) What speed did the stone have to be launched at to achieve this range? b) How long was the ball in the air? c) How fast was the ball traveling at the apex of its flight?
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