Question

Happy to see its human, a dog excited wags its tail in simple harmonic motion. The tail is approximately much like a rigid rod rotating about one end, is 38 cm long, and and rotates from the left side to the right side (sweeping 180 degrees) and back 2.2 times per second. What is the maximum acceleration at the tip of its tail?

Report the value in m/s^{2} rounded to the nearest whole
number.

Answer #1

Answer both sections:
A) The motion of a piston in an auto engine is simple harmonic.
If the piston travels back and forth over a total distance of 12
cm, and the piston has a mass of 1.8 kg, what is the maximum force
acting on the piston when the engine is running at 4,800 rpm
(revolutions per minute)? Round your answer to the nearest Newton.
Enter the numerical answer only with no units.
B)
A body oscillates with simple...

In an engine, a piston oscillates with simple harmonic motion so
that its position varies according to the expression,
x = 8.00 cos (3t + pi/4)
where x is in centimeters and t is in
seconds.
(a) At t = 0, find the position of the piston.
cm
(b) At t = 0, find velocity of the piston.
cm/s
(c) At t = 0, find acceleration of the piston.
cm/s2
(d) Find the period and amplitude of the motion.
period...

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