Mechanics — Variant 3
A Level Mathematics · 9709/43 · May/June 2021
Questions
1 of 7 questions shown here, checked against the paper. The others are in the PDF above — they contain diagrams or maths we could not yet verify, and we would rather show you the original than a transcription we are not sure of.
6
A particle moves in a straight line and passes through the point at time . The velocity of the particle at time s after leaving is , where\n\n.
6(a)
[4]
Find the times at which the particle is instantaneously at rest. Hence or otherwise find the minimum velocity of the particle.
6(b)
[3]
Sketch the velocity-time graph for the first seconds of motion.
6(c)
[3]
Find the distance travelled between the two times when the particle is instantaneously at rest.
Published by Cambridge Assessment International Education. Reproduced for study use.