Kinetic energy is given by:
, where m is mass and v is velocity.
As the projectile approaches its maximum height, the velocity becomes zero at the maximum height.
This means that the kinetic energy will be zero.
In which one(s) of the following situations will there be an INCREASE in Kinetic Energy?
A. A projectile approaches its maximum height.
B. A box is pulled across a rough floor at constant speed.
C. A block slides down a frictionless incline
D. A stone at the end of a string is whirled in a horizontal circle at constant speed.
E. A merry go round rotates faster due to the push by a person.
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