Question:
The work done by a force F = [2.3.4] acting on a body if the body is displaced from the point A (3,5,0) to a point B (5.7.0) along the straight line AB is
A4
B10
C6
D12
Answer:
B. 10
Explanation:
The area under a force-displacement graph represents the work done on an object.
force, F = [2.3.4]
displacement of body from A (3.5.0) to B (5.7.0)
= B(5.7.0) - A(3.5.0)
= (5-3.7-5.0-0)
= (2.2.0)
Work done = Force x Displacement = [2.3.4] x (2.2.0)
= (2x2 + 3x2 + 4x0)
= (4 + 6 + 0)
= 10