It has a much longer life than lead-acid accumulator

Which of the following statements is not an advantage of an alkaline accumulator?

When the speed a car is halved, its kinetic energy is 

During a training session, two footballers pass a ball repeatedly between each other. The 'to and fro' motion of the ball is not simple harmonic because

I. acceleration of the ball is not directed towards a fixed point
II. restoring force a fixed point
III. acceleration of the ball is not directly proportional to the displacement from a fixed point.
Which of the statements above are correct?



WAEC Physics

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