Physics-

General

Easy

Question

# A block of mass 2kg is free to move along the x- axis. It is at rest and from t=0 onwards it is subjected to a time-dependent force in the x- direction. The force varies with t as shown in the figure. The kinetic energy of the block after 4.5 seconds is

- 4.50 J
- 7.50 J
- 5.06 J
- 14.06 J

## The correct answer is: 5.06 J

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