Work requires
A) motion.
B) zero net force.
C) zero momentum.
D) a force perpendicular to the direction of motion.
Correct Answer:
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Q2: The kinetic energy of a pendulum is
Q3: Which of the following is a vector
Q4: A 1000-kg car traveling at 70 m/s
Q5: When a 6-kg object increases its potential
Q6: A student weighing 300 N climbed a
Q8: An object of mass 2 kg has
Q9: A 4-kg object falls vertically a distance
Q10: The energy of motion is called
A) inertia.
B)
Q11: A joule/meter (J/m) is a unit of
A)
Q12: Work is defined as force times
A) distance.
B)
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