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2206

Which of the following equations represents the distance x, travelled by a body moving on a straight road with a constant speed? [The other symbol have their usual meanings]

A. x = Ut + \(\frac{1}{2}t^2\)
B. x = Ut
C. x = \(\frac{V^2 - U^2}{2a}\)
D. x = -\(\frac{1}{2} at^2\)

View Answer & Discuss (6) WAEC 2001

2207

The amplitude of the motion of a body performing simple harmonic motion decreases with time because

A. friction force dissipate the energy of motion
B. the frequency of oscillation varies with time
C. the period of oscillation varies with time
D. energy is supplied by some external agency

View Answer & Discuss (3) WAEC 2001

2208

The amplitude of a particle executing simple harmonic motion in 5cm while its angular frequency is 10 rad s^-1. calculate the magnitude of the maximum acceleration of the particle