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A foce acts on a 30g particle in such a ...

A foce acts on a 30g particle in such a way that the position of the particle as a function of time is given by
`x=3t-4t^(2)+t^(3)`, where x is in metre and t in second. The work done during the first 4s is

A

5700mJ

B

4500mJ

C

4900mJ

D

5280mJ

Text Solution

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The correct Answer is:
d
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Knowledge Check

  • The displacement of a particle is moving by x = (t - 2)^2 where x is in metres and t in second. The distance covered by the particle in first 4 seconds is.

    A
    a. 4 m
    B
    b. 8 m
    C
    c. 12 m
    D
    d. 16 m

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