Work Energy And Power Question 64
Question: The displacement x of a particle moving in one dimension under the action of a constant force is related to the time t by the equation , where x is in meters and t is in seconds. The work done by the force in the first 6 seconds is [IIT 1979]
Options:
A) 9 J
B) 6 J
C) 0 J
D) 3 J
Show Answer
Answer:
Correct Answer: C
Solution:
therefore
at
so, change in kinetic energy