Physics, asked by PremBaap, 1 year ago

at any instant the velocity and acceleration of a particle moving along a straight line are v and a the speed of the prticle is increasing if

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Answered by pratik6555

answer is a.
acceleration must be positive for increase in speed. if acceleration is negative, it means the object is slowing down

pratik6555: b points to a condition that object is moving in opposite direction with a positive acceleration

pratik6555: c points to a condition where the object is slowing down

pratik6555: d points to a condition where the object is moving at constant velocity...no acceleration no deaccelertaion

Answered by tejasreee

Speed of a particle is increasing if velocity and acceleration are in same direction (i.e. a>0,v >0 (or) a <0,v <0) so according to the given options, option a is correct.

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