Which of the following will reduce the frequency of oscillation of a simple pendulum _____?
A. Increasing the mass of the bob B. Decreasing the mass of the bob C. Increasing the length of the string D. Decreasing the length of the string E. Increasing the amplitude of oscillation Correct Answer: Option C – Increasing the length of the string...Which of the following has the same unit as the moment of a force?
A. Force B. Power C. Work D. Momentum E. Impulse Correct Answer: Option C – WorkA body accelerates uniformly from rest at the rate of 3 m/s for 8 seconds. Calculate the distance covered by the body during the acceleration.
A. 12m B. 24m C. 48m D. 72m E. 96m Correct Answer: Option E – 96m Explanation S = ut + ½at² = 0 + 1/2 x 3 x 8² = 96m
Which of the following statements about solid friction is/are correct?
I. Friction depends on the nature of the surfaces in contact II. Friction depends on the area of contact III. Friction always acts in the direction of motion. A. I only B. II only C. III only D. I and II only E. I,II and III Correct Answer: Option A – I...
What change in velocity would be produced on a body of mass 4kg if a constant force of 16 N acts on it for 2s?
A. 0.5 m/s B. 2.0 m/s C. 8.0 m/s D. 32.0 m/s E. 128.0 m/s Correct Answer: Option C – 8.0 m/s Explanation F = m(v – u)/t; (v – u) = Ft/m = 8.0 m/sProducts
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