Question

a force f= 3i+cj+2k acting on a particle causes displacement , d=-4i+2j+3k

a force f= 3i+cj+2k acting on a particle causes displacement , d=-4i+2j+3k.
If the work done is 6 joule then the value of c.
Plz. Solve
2 1
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Answer #1
The dot product f*d equals 6 Joules, if the force is in Newtons and the displacement distance is in meters.

-12 +2c +6 = 12

2c = 18

Take it from there
answered by: 4611star
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Answer #2
F=3i+cj+2k and s=-4i+2j+3k work done is 6J W=F×S 6=-12+2c+6 12+6-6=2c 2c=12 c=12÷2 c=6 : Thankyou
source: Teacher
answered by: @abc
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