Physics, asked by barsha9, 1 year ago

find the answers of 2 questions

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Answered by abhinavvicky
3
1. let two forces be A and B both equal to 5N
since A is perpendicular to B
therefore @(theeta) = 90

Magnitude of resultant R =
whole root under A^2 + B^2 +2AB cos@
putting values of A=B = 5 and @ = 90
we get R =
 5\sqrt{2}
direction:
let R makes angle ¥ with force B
therefore
tan ¥ = A sin @/B+ A cos @
putting values of A and B = 5 and @ = 90
we get
tan¥ = 1
¥ = 45 degree
therefore
direction of R is 45 degree with force B.


barsha9: urgently
abhinavvicky: centripetal force equals mv^2/r therefore dimensional formula equals MLT^-2
barsha9: and unit
abhinavvicky: kg m s^-2
barsha9: tq
abhinavvicky: wc
barsha9: ok
abhinavvicky: hmm
barsha9: ya
barsha9: a body of mass 10kg slides in a horizontal surface by a force of 19.6N. then find out the coefficient of friction.
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