A body of mass m is moving in a circle of radius r with a constant speed v. the force is mv2/r and is directed towards the centre. what is the work done by force in moving the body half the circumference of the circle?
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Force depends on mass,velocity and radius
[MLT^-2} = k[M}^a{LT^-1]^b[L]^c
= M^aL^bT^-bL^c
Equating the powers we get,
a=1, b+c=1 and -b=-2 or b=2, therefore c= -1
substituting the values we get
F = mv^2/r
[MLT^-2} = k[M}^a{LT^-1]^b[L]^c
= M^aL^bT^-bL^c
Equating the powers we get,
a=1, b+c=1 and -b=-2 or b=2, therefore c= -1
substituting the values we get
F = mv^2/r
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