Q. 36

# Motion in two dim

Answer :

(a) We know, (1) (2)

Multiplying the equation (1) with sin and (2) with cos   Adding the above two equations,  Substituting in equation (1),     (b) In order to show that and are perpendicular, lets show that their dot product is zero.  Therefore, and are perpendicular.

(c) Differentiating on both sides, (d) Writing dimensions on both sides,   (e) We know, Here, a=1 Differentiating on both sides to find velocity,  Differentiating on both sides to find acceleration,  Rate this question :

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