Question

A prismatic block of mass m is lifted through a distanced along the slant. If the coefficient of friction between the block and slant surface is 1`mu.` find the
(A) Work done by force F, friction and gravity.
(B) Speed of the block after moving through a distance d.
Assuming,` mu=1//6,theta=45%^(@)and F=2mg`

Answer 1

`(A) sqrt2mgd,-(mgd)/(2sqrt2),(-mgd)/(sqrt2),(B)sqrt((gd)/(sqrt2))`