A particle of mass 10kg, moving in a straight line, starts at rest from a point A under the action of a force that decreases uniformly from 20N to zero in 20 secs. It then travels with a constant speed for a further 20s, and finally moves under the action of an opposing force of 40N until it comes to rest at B. Find the maximum speed attained and the distance travelled.
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The speed and distance travelled are examined for a particle under opposing forces. The solution is detailed and well presented. The response received a rating of "5" from the student who originally posted the question.