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A particle moves along the x axis according to the equation x = 6t², where x is in meters and t is in seconds. Therefore:

Athe acceleration of the particle is 6 m/s²
Bt cannot be negative
Cthe particle follows a parabolic path
Deach second the velocity of the particle changes by 9.8 m/s
Enone of the above

Verified Answer :

johnkellock

Answer is E

time can be negative.

A is not true because a=d2xdt2=12 m/s2

C: question already said that particle move along x-axis, which is not parabola path.

D: velocity is dxdt=12t, therefore velocity changes by 12 m/s and not 9.8 m/s


So we are left with E.

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