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If position of a particle varies with time as x = t^3 - 3t^2, whre t is in second. Then magnitude of displacement is equal to distance traveled of the particle at t=????
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3 Answers
Anirudh Kumar
·2010-01-17 02:43:50
v(t)= 3t2-6t
thus it changes direction at t=2 sec .
so distance travelled is equal to dispalcement till t=2 s .
varun.tinkle
·2010-01-17 03:44:56
u shuld remember the concept that the modulus of intaneous vel is th einstaneous speed therefore the time interval will be the time interval in which the veldoes not change sign