Respuesta :
Answer:
Explanation:
Simple harmonic motion is the motion that involves the cyclic and periodic motion of an object about a central point or equilibrium position, due to the effect of a restoring force, such that the object has the same maximum displacement during its motion on either side of the equilibrium point
(a) The parameters of the body moving with SHM are;
The amplitude of the motion of the body, a = 10 cm
The frequency of the complete cycles of the motion of the body, f = 100 Hz
The period of the oscillation, 'T', is the time it takes o complete one cycle
T = 1/f
∴ T = 1/100 Hz = 0.01 seconds
(b) The acceleration, a = -A·ω²·sin(ω·t)
Where;
One complete oscillation is given as ω·t = 2·π
Therefore at either end at the maximum displacement, which is at either end of the equilibrium position is reached at half a complete cycle, or ω·t = 2·π/2 = π
At the maximum displacement a = -A·ω²·sin(ω·t) = A·ω²·sin(π) = 0
Therefore, we have;
The acceleration, of the body at the maximum displacement, a = 0 m/s².
