1.

Following are four different relations about displacement, velocity and acceleration for the motion of a particle in general. Choose the incoorect one(s). (a) v_(av)=1/2 [v(t_(1))+v(t_(2))] (b) v_(av)=r(t_(2))-r(t_(1))/(t_(2)-t_(1)) (c) r=1/2 (v(t_(2))-v(t_(1)) (t_(2)-t_(1)) (d) a_(av)=v(t_(2))-v(t_(1))/(t_(2)-t_(1))

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a and b
a and d
b and c
a and c

Answer :D


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