sir/ mam I need ur help in kinematics again.

Asked by  | 24th Jun, 2008, 03:08: PM

Expert Answer:

Ans is b.

Look at the triangle like the one shown in your NCERT class 11 part I textbook page 80 fig.4.19b.

The displacement is Δr.

Using trigonometry , for triangle PP'C

sin Δθ/2 = (PP')/2r

PP' = 2r sin (delta theta)/2

 

 

Answered by  | 26th Jun, 2008, 03:53: PM

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