I. The motion of the tyres of a moving car.
II. The motion of a loaded test tube oscillated
vertically.
III. The beating of the heart.
IV. A stone tied to a string and whirled round.
V. The motion of the pistons in a gasoline engine.
Which of the motions above is simple harmonic?
A
III, IV and V only
B
II, III and V only
C
II, III and IV only
D
I,II and III only
Verified Correct Answer: B.
Physical Principles & Numerical Solution
Simple harmonic motion is the motion of a body whose acceleration is directed towards a fixed point and is directly proportional to its displacement from point.
Statements ii, iii and v are clear examples
Source: WAEC / JAMB / NECO Classroom Archive (Record #14141)