A 2.50 kg beverage can is thrown directly downward from a height of 4.00 m, with an initial speed of 3.00 m/s. The air drag on the can is negligible.What is the kinetic energy of the can (a) as it reaches the ground at the end of its fall and (b) when it is halfway to the ground? What are (c) the kinetic energy of the can and (d) the gravitational potential energy of the can–Earth system 0.200 s before the can reaches the ground? For the latter, take the reference point y = 0 to be at the ground.

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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A 2.50 kg beverage can is thrown directly downward from a
height of 4.00 m, with an initial speed of 3.00 m/s. The air drag on
the can is negligible.What is the kinetic energy of the can (a) as it
reaches the ground at the end of its fall and (b) when it is halfway
to the ground? What are (c) the kinetic energy of the can and (d)
the gravitational potential energy of the can–Earth system 0.200 s
before the can reaches the ground? For the latter, take the reference
point y = 0 to be at the ground.

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