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Q3 Given that P = & + y - 2k, Q =2x - y + 3k , and R =y - 5k (a) Find the

Q3 Given that P = & + y - 2k, Q =2x - y + 3k , and R =y - 5k (a) Find the work done by the force Q acting on a object which undergoes displace- ment R. (b) Find the total work done by forces P and Q if the object undergoes the dis- placement R

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