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A 4.0-kg block slides along a frictionle...

A 4.0-kg block slides along a frictionless surface with a constant speed of 5.0 m/s as shown. Two seconds after it begins sliding, a horizontal, time-dependent force is applied to the mass. The force is removed 8 s later. The graph shows how the force on the block varies with time.

What is the approximate speed of the block at t =11 s?

A

5.0 m/s

B

16 m/s

C

25 m/s

D

65 m/s

Text Solution

Verified by Experts

The correct Answer is:
B
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