Question

A particle starts from origin at t=0 with a velocity of 10i m/s and moves in my plane under the action of a force which produces a constant acceleration of (6i+4j)m/s2. (a) What is the y coordinate of the particle at the instant it's x coordinate is 84m.(b) What is the speed of the particle at this time.

Answer 1

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Speed= 20√5m/s