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Subject :NSO    Class : Class 6

Which of the following statements are correct?
(i) Wheels of a car moving at a constant speed undergo linear, rotational as well as periodic motion.
(ii) A hockey player running after the ball during a match undergoes linear and periodic motion.
(iii) The pendulum of a clock undergoes periodic and oscillatory motion.

A(i) and (ii) only
B(ii) and (iii) only
C(i) and (iii) only
D(i), (ii) and (iii)

Ans 1:

Class : Class 6

Ans 2:

Class : Class 3
How can be constant speed be periodic motion??

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