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…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Similar questions

During a recent winter storm, bales of hay had to be dropped from an airplane to a herd of cattle below. Assume the airplane flew horizontally at an altitude of 185 m with a constant velocity of 44.0 m/s and dropped one bale of hay every 4.0 seconds. It is reasonable to assume that air resistance will be negligible for this situation. About how far apart from each other will the bales land on the ground?
A tennis player serves a tennis ball such that it is moving horizontally when it leaves the racquet. When the ball travels a horizontal distance of 19 m, it has dropped 49 cm from its original height when it left the racquet. What was the initial speed, in m/s, of the tennis ball? (Neglect air resistance.)
An airplane flies horizontally at a speed of 535 km/h and drops a crate that falls to the horizontal ground below. Neglect air resistance. If the altitude of the plane was 728m, then how far in meters did the crate move as it fell to the ground?
A person throws a ball up into the air at an initial velocity of 15.0 m/s. Calculate (a) how high does it reach and (b) how long the ball is in the air until it comes back to the hand. Ignore the resistance of the air.
A baseball player throws a ball into the air with an initial speed of 27 m/s [up]. Ignore air resistance. (a) How high does the ball go? (b) How long is the ball in the air before she catches it?
A person sitting on the ground floor of a building notices through the window, of height 1.5 m, a ball dropped from the roof of the building and crosses the window in 0.1 s. What is the velocity of the ball when it is at the topmost point of the window? (g-10 m/s²) (1) 20 m/s (2) 15.5 m/s (3) 14.5 m/s (4) 4-5 m/s
A stone is thrown horizontally with an initial speed of 10 m/s from the edge of a cliff. If the height of the cliff is 100 m, what is the time of flight of the stone if air resistance is negligibly small?
An object is thrown vertically into the air. Because of air resistance, the time for its descent will be longer than the ascent time. equal to the ascent time. shorter than the ascent time. not enough information
A ball is thrown horizontally from the top of a 61.5-m building and lands 113.8 m from the base of the building. Ignore air resistance. (Assume the ball is thrown in the +x direction and upward to be in the +y direction.) (a) How long is the ball in the air? (b) What must have been the initial horizontal component of the velocity? (Indicate the direction with the sign of your answer.) m/s (c) What is the vertical component of the velocity just before the ball hits the ground? (Indicate the direction with the sign of your answer.) m/s (d) What is the velocity (including both the horizontal and vertical components) of the ball just before it hits the ground? magnitude m/s direction ° counterclockwise from the +x-axis
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A stone is thrown at 16 m/s with an angle of 40° above the horizontal from the roof top of the building 65 m above the ground. (a) How long will it take for the stone to reach the ground? (b) What is the velocity of the stone just before it strikes the ground?

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