Q.

A particle of mass 1kg is displaced from(0,0,0) to (2m,2m,2m) under the  action of a force (9i^+4j^)N .The work done by the force is

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a

26J

b

36J

c

46J

d

56J

answer is A.

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Detailed Solution

W=F→S→=(9i^+4j^)⋅(2i^+2j^+2k^)W=18+8=26J
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Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
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A particle of mass 1kg is displaced from(0,0,0) to (2m,2m,2m) under the  action of a force (9i^+4j^)N .The work done by the force is