A car moves along a straight road in such a way that its velocity (in feet per second) at any time t (in seconds) is given by v(t) = 3t 9 −

Question

A car moves along a straight road in such a way that its velocity (in feet per second) at any time t (in seconds) is given by v(t) = 3t 9 − t2 (0 ≤ t ≤ 3).

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Luna 2 weeks 2021-09-13T13:53:06+00:00 1 Answer 0

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    2021-09-13T13:54:55+00:00

    Answer:

    velocity varies between 25,50 and 75 (feet per second)

    Step-by-step explanation:

    as t varies between 0 and 3

    putting t=0

    v(0)= 3(0)9- 0(2)

    v(0)= 0

    now putting t= 1 in the given equation

    v(1)= 3(1)9-(1)2

    v(1)= 27-2

    V(1)=25

    now putting t= 2 in the given equation

    V(2)= 3(2)9-(2)2

    V(2)= 54-4

    V(2)=50

    now putting t= 3 in the given equation

    V(3)= 3(3)9-(3)2

    V(3)= 81-6

    V(3)=75

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27:3+15-4x7+3-1=? ( )