Asked by THABAN
A 0.04KG BEAD SLIDES ON A CURVED STARTING FROM REST AT POINT A.THE EARTH FROM A AND B IS FRICTIONLESS ,WHILST THE PATH FROM B TO C IS ROUGH.IF THE BEAD ARRIVES AT POINT C WITH A SPEED OF 1M/S DERTIMINETHE AMOUNT OF WORKDONE BY THE FRICTIONAL FORCE IN PASSING FROM B TO C?
Answers
Answered by
Writeacher
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Also ... when you type in all-caps, two things happen:
**it's harder to read, and
**it's the online equivalent to SHOUTING (considered rude behavior).
Please just type in regular mode, not with the Caps Lock feature turned on. Thanks.
Answered by
drwls
Additional information is required on the elevation drop from A to C. Call it H.
The work done BY friction will be MINUS the difference between potential energy loss and kinetic energy gain
= M [gH - V^2/2)]
The work done BY friction will be MINUS the difference between potential energy loss and kinetic energy gain
= M [gH - V^2/2)]
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