A force vecF = 3 hati - 2 hatj + 4hatkdisplaces a body from a point A(8, -2, -3) to the point B(-2, 0,6). The work done is

A force vecF = 3 hati - 2 hatj + 4hatkdisplaces a body from a point A(

1.	A force vecF = 3 hati - 2 hatj + 4hatkdisplaces a body from a point A(8, -2, -3) to the point B(-2, 0,6). The work done is
Answer» 1 UNIT 2 units 3 units 4 units Solution :`W = (3 hati - 2hatj + 4 hatk) . (-10 hatj + 2hatj + 9 hatk)` `= - 30 - 4 = 36 = 2 ` units