Question #99951

1 Answer
Dj
Jun 10, 2015

This can be done easily with the help of Work-Energy Theorem, which states that the change in Kinetic Energy is equal to the amount of Work done.

Explanation:

F=5i+4j+10k
r1= 2i+3j+4k
r2=7i+7j+8k
The Displacement r= r2- r1
So, Change in Kinetic Energy, Kf-Ki=Work done
Initially The Kinetic Energy is 0
So,
Kf=W
where W=F. r
Now you can do the calculation and get your answer!

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