Physics, 20.02.2020 00:57 fluffyanimal456
S. A cart attached to a spring is displaced from equilibrium and then released. There is no friction. A graph of displacement as a
function of time for the cart is shown. The arrows and signs above the cart indicate the positive and negative directions for the
position of the cart.
(a) At which point or points is the acceleration positive?
(b) At which point or points does the cart have zero velocity but
nonzero net force?
A Displacement, cm
(c) At which point or points is the net force on the cart equal to zero?
A
16
Time
(d) At which point or points are the acceleration, velocity, and
displacement all positive? _
(e) At which point or points is the acceleration nonzero and opposite in sign to the position?
(f) At which point or points is the velocity nonzero and opposite in sign to the acceleration?
(b) At which point or points is the kinetic energy equal to zero?
(e) At which point or points is the kinetic energy positive?
(c) At which point or points is the total energy at its maximum value? _
Answers: 3
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S. A cart attached to a spring is displaced from equilibrium and then released. There is no friction...
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