AMU Engineering 2017 solved paper Solved Paper

Section: Physics

Question : 5 of 150

Marks: +1, -0

If a particle's position is given by x=4−12t+3t2 where t is in the seconds and x in meters. What is its velocity at t=1s? Whether the particle is moving in positive x direction or negative x direction?

−6m∕s,+x direction
−6m∕s,−x direction
6m∕s,+x direction
4m∕s,−x direction

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