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50 kg beverage can is thrown directly downward from a height of 4m with an initial speed of 3m/s. the air drag on the can is negligible. What is the...

This question was answered on Mar 19, 2010. View the Answer
a 2.50 kg beverage can is thrown directly downward from a height of 4m with an initial speed of 3m/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? c. the kinetic energy of the can andd. the gravitational potential energy of the can-earth system 0.200s before the can reaches the ground? for the latter take the reference point y=0to be at the ground

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Hi, I have attached the solution... View the full answer

PHY.doc

Here, height of release = h =4m
initial vel = u = 3m/sec
mass = 2.5 kg
acceleration due to gravity = 10m/sec2
A.
Let v be the vel on reaching the ground.
We know : v2 = u2 +2gh = 9 + 2(10)4 = 89
So...

This question was asked on Mar 18, 2010 and answered on Mar 19, 2010.

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