Home Physics Work, Energy, Power and Collision Work Done A variable force, given by the 2-dimensional…
Physics Work, Energy, Power and Collision Work Done MCQ (Single Correct)

A variable force, given by the 2-dimensional vector , acts on a particle. The force is in newton and x is in meter. What is the change in the kinetic energy of the particle as it moves from the point with coordinates (2, 3) to (3, 0)? (The coordinates are in meters)

A
-7 J
B
Zero
C
+7J
D
+19 J

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Text Solution

Verified by Experts
The correct answer is:
C

:

Work done,

According to work-energy theorem.

Change in the kinetic energy = work done, W = +7J

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