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The point of ...

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The point of application of force (-2, 4 ,7) is displaced from the point (3,-5, 1) to the point (5, 9, 7). But the force is suddenly halved when the point of application moves half the distance. Find the work done.

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Q. The point of application of the force

(- 2, 4, 7)

is displaced from the point

(3, - 5, 1)

(5, 9, 7)

, but the force is suddenly halved when the point of application moves half the distance.The work done by the force is

Q. When an object is stationary but the point of application of force moves on the object, work done is

Q. Calculate the scalar product of the following vectors.
Given three forces

M = {3, - 4, 2}, W = {2, 3, - 5}, a n d P = {- 3, - 2, 4}

applied to the same point. Calculate the work performed by the resultant of these three forces when the point of application of the resultant moves along a straight line and is displaced from the position

M_{1} {5, 3, - 7}

to the position

M_{2} {4, - 1, - 4} .

Q. Find the work done by the force

F = 2 i + j + k

if its point of application moves in a straight line from the point

P (1, 1, 1)

Q (2, 1, 3)

.

Q. The work done by a force

\to F = 3^i - 4^j + 5^k

displaced the body from a point

(3, 4, 6)

(7, 2, 5)

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