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a constant fo...

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a constant force f= -i+2j+3k N is acting on a particle. What will be the total work done by this force first in moving the particle 4m along z axis ?

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Q. A particle acted on by constant forces

3 i + j - k

4 i + j - 3 k

is displaced form the point

i + 2 j + 3 k

5 i + 4 j + k .

Find the total work done by the forces.

\to F = (3^i + 4^j) N

acts on a particle moving in

x - y

plane . Starting from origin, the particle first goes along

x

- axis to the point

(4 m, 0)

and then parallel to the

y

- axis to the point

(4 m, 3 m)

. The total work done by the force on the particle is

F = - K (y ˆ i + x ˆ j)

K

is a +ve constant) acts on a particle moving in xy plane starting from origin, the particle is taken along the positive x-axis to the point (

a, 0

) and then parallel to y axis to the point (

a, a

). The total work done by force

F

on the particle is

F = - k x^{3}

is acting on a block moving along x-axis. Here, k is a positive constant. Work done by this force is:

F = - 6 x^{3}

is acting on a block moving along x-axis. Work done by this force is:

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