The position 7 of a particle moving in an xy plane is given by 7 =...

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The position 7 of a particle moving in an xy plane is given by 7 = (3.00r – 5.00t)î + (4.00 – 1.00r“ )f with 7 in meters and t in seconds. In unit-vector notation, calculate (a) 7, (b) V , and (c) ở for t= 2.00 s. (d) What is the angle between the positive direction of the x axis and a line tangent to the particle's path at t = 2.00 s? Give your answer in the range of (-180°; 180°). (a) Number i ĵ Units (b) Number i i 1 Units (c) Number i ĵ Units (d) Number i Units > The position 7 of a particle moving in an xy plane is given by 7 = (3.00r – 5.00t)î + (4.00 – 1.00r“ )f with 7 in meters and t in seconds. In unit-vector notation, calculate (a) 7, (b) V , and (c) ở for t= 2.00 s. (d) What is the angle between the positive direction of the x axis and a line tangent to the particle's path at t = 2.00 s? Give your answer in the range of (-180°; 180°). (a) Number i ĵ Units (b) Number i i 1 Units (c) Number i ĵ Units (d) Number i Units >