A constant force F acts on a moving body along a smooth quarter circular arc of radius R fixed on horizontal surface. Calculate the work done by force F from A to B

A constant force F acts on a moving body along a smooth quarter circul

1.	A constant force F acts on a moving body along a smooth quarter circular arc of radius R fixed on horizontal surface. Calculate the work done by force F from A to B
Answer» If force F always POINTS towards B then WORK `Fsqrt(2)R` IF force F always acts TANGENTIALLY `(Frpi)/2` If force F always acts parallel to AB `Fsqrt(2)R` If force F always acts parallel to AB zero Answer :A::B