Two cars, A and B , are travelling in the same direction although Car B is 186 metres behind A. The speed car

Question

Two
cars, A and B , are travelling in the same
direction
although
Car B is 186 metres behind A. The
speed car B is 24.4 m/s and the speed of car A is 18.6 m/ s. How much time does it take for car B to catch up with car A?

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Gerda 4 hours 2021-07-22T11:34:11+00:00 1 Answers 0 views 0

Answers ( )

    0
    2021-07-22T11:35:26+00:00

    Answer:

    SA = 18.6 * t + 186    total distance traveled by A in time t

    SB = 24.4 t                total distance car B must travel to catch car A

    SA – SB = 0 = 18.6 t + 186 = 24.4 t

    (24.4 – 18.6) t = 186

    t = 186 m / 5.8 m/s = 32 s

    Check 18.6 * 32 + 186 = 781 m

    24.4 * 32 = 781 m

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