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Galileo\'s great-great-great grandchild stands at the top of a vertical tower 58

ID: 2131978 • Letter: G

Question

Galileo's great-great-great grandchild stands at the top of a vertical tower 58.6 m tall with a Chianti bottle.

A) How long does it take for the bottle to fall to the ground, if it was just dropped from the tower?


B) What is the velocity of the bottle as it hits the ground, if it was just dropped from the tower?


C)How far does the bottle land from a point on the ground directly beneath the point from which it was

   launched, if the bottle was thrown straight out horizontally from the tower with a speed of 14.0 m/s?


D)What is the bottle's horizontal component of velocity, if the bottle was thrown straight out horizontally

   from the tower with a speed of 14.0 m/s?


E)What is the magnitude of its velocity just before it strikes the ground, if the bottle was thrown straight

   out horizontally from the tower with a speed of 14.0 m/s?

Explanation / Answer

A) How long does it take for the bottle to fall to the ground, if it was just dropped from the tower?

t=sqrt(2h/g)=3.86sec


B) What is the velocity of the bottle as it hits the ground, if it was just dropped from the tower?

v=sqrt2gh=33.9m/s^2

C)How far does the bottle land from a point on the ground directly beneath the point from which it was

launched, if the bottle was thrown straight out horizontally from the tower with a speed of 14.0 m/s?

=14*3.86

=54.04m


D)What is the bottle's horizontal component of velocity, if the bottle was thrown straight out horizontally

from the tower with a speed of 14.0 m/s?

14m/s


E)What is the magnitude of its velocity just before it strikes the ground, if the bottle was thrown straight

out horizontally from the tower with a speed of 14.0 m/s?

v=sqrt(33.9^2 +14^2)=36.67m/s