Find the distance, displacement and the ratio of distance to displacement in each case from the figure given below:  a) When object is travelling from A to B.  b) When object is travelling from A to C. 
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c) When object is travelling from A then coming back to A. d) When object is travelling from B to C.

Distance travelled is actual distance covered during travelling from starting point to ending point.

displacement is shortest distance between starting point and ending point.

 

(a) distance / displacement = πR /(2R) = π/2

 

(b) & (d) point C is not given, so we are not able to answer

 

(c) distance /displacement = 2πR / 0 = infinity