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The work done by the force vecF=ahati+...

The work done by the force ` vecF=ahati+hatj+hatk ` in moving the point of application from (1.1.1) 1 (2. 2. 2) along a straight line is given to be 5 units. Find the value of a.

Text Solution

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The correct Answer is:
a=3
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Knowledge Check

  • The work done by the force vecF=2hati-3hatj+2hatk in moving a particle from (3, 4, 5) to (1, 2, 3) is :

    A
    `sqrt(29)`
    B
    `-4 `
    C
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    D
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  • The force vecF=2hati+2hatj-2hatk acting at the point hati-2hatj+hatk is displaced to a unit distance in z axis direction. The magnitude of workdone is :

    A
    4 units
    B
    6 units
    C
    2 units
    D
    10 units

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