The vector position of a particle varies in time according to the expression i = 7.40 î - 6.202² j where ř is in meters and t is in seconds. (a) Find an expression for the velocity of the particle as a function of time. (Use any variable or symbol stated above as necessary.) v = m/s (b) Determine the acceleration of the particle as a function of time. (Use any variable or symbol stated above as necessary.) m/s? (c) Calculate the particle's position and velocity at t = 3.00 s. m m/s to

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