A bug flies at a rate of 0.5 m/s. This bug has 0.000625 J of Kinetic Energy. What is the mass of the bug?

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Quizplus · Accepted Answer

Kinetic Energy is the energy an object possesses because of its velocity. Any object that is in motion is using kinetic energy: a child running, a thrown ball, someone skiing down a hill, or a book falling off of a shelf. This is why the equation takes into account the object's mass and the rate at which they are traveling (their velocity). KE = ½ x mv² KE = Kinetic energy (expressed in Joules - J) m = mass (expressed in kilograms) v² = velocity (expressed in meters per second squared) To find the mass we must isolate it: 2 x KE = 2 x ½ x mv² 2 x KE = mv² 2 x KE / v² = mv² / v² 2 x KE / v² = m v = 0.5 m/s KE = 0.000625 J m = 2 x 0.000625 J / (0.5 kg)² = 0.005 kg

A Bug Flies at a Rate of 0