Explain how con you measure frictional force
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To measure the static coefficient of friction under conditions of high contact pressure the object may be clamped between two surfaces. The force necessary to put the object in motion must be halved to obtain the friction forcebecause of the two contacting surfaces.
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The constant ratio is called coefficient of friction and is usually symbolised by the Greek letter MU. Because both friction and load are measured in units of force. The coefficient of friction is dimensionless.
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