Question

Ques. A ball rolling on a floor has?
a.rectilinear motion.
b. random motion.
c. preiodic motion.
d. non-preiodic motion.​

Answer 1

Answer:

rectilinear motion is the answer

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Answer 2

(i) Linear motion : (a) Rolling of ball, (b) Moving of bicycle on road;

(ii) Spinning motion : (a) Rotating fan, (b) Wheel of sewing machine;

(iii) Oscillatory motion : (a) Pendulum of clock, (b) Motion of a child on a swing;

(iv) Periodic motion : (a) Pendulum of clock, (b) Motion of a swing, heartbeat;

(v) Vibrational motion : (a) String of a guitar, (b) Surface of drums;

(vi) Circular motion : (a) Rotation of fan, (b) Bicycle wheel;

(vii) Random motion : (a) Motion of football players, (b) Movement of mosquito.

Explanation:

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