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April 18, 2015

Homework Help: physics

Posted by ryan on Wednesday, November 7, 2012 at 9:42pm.

You throw a softball (of mass 300 g) straight
up into the air. It reaches a maximum altitude
of 10.1 m and then returns to you.
What is the gravitational potential energy
of the softball at its highest position? Assume
the ball departed from and returned to ground
level.
Answer in units of J
29.69J ---^

Assume no energy is lost by the softball while
it is in the air.
What is the kinetic energy of the softball as
soon as it leaves your hand?
Answer in units of J

What is the kinetic energy of the softball when
it returns to your hand?
Answer in units of J

What is the speed of the ball?
Answer in units of m/s

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