An object is moving with a velocity of 20m/s.A force of 10 N is acting in a direction perpendicular to its velocity. What will be the speed of the object after 10seconds?
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20m/s.
as per work energy theorem,
change in Kinetic energy=work done
when force is perpendicular to motion,
work done=f*vdt*cos(90)=0
so change in KE=0
so its speed does not change
as per work energy theorem,
change in Kinetic energy=work done
when force is perpendicular to motion,
work done=f*vdt*cos(90)=0
so change in KE=0
so its speed does not change
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