Text: Two paths of two moving particles are given by r1(t) = (2t^2-3)i + (2t+1)j + (4-t)k r2(t) = (10t^2 - 4)i + (7-4t)j + (2t^2 + 2t)k where t > 0 (a) Calculate the velocity of the particles at any time t. (b) What is the initial angle between the particles' directions of motion? (c) Do the two particles ever collide? If so, find the time and place at which they do.
Added by Shannon R.
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We can use the first equation to solve for r1(t) and get r1(t) = (2t2-3)i + (2t+1)j + (4-t)k Show more…
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