A small block of mass m is kept on a rough inclined surface of inclination theta fixed in an elevator. The elevator goes up with a uniform velocity V and the block does not slide on the wedge. The work done by the force of friction on the block in a time t will be

A small block of mass m is kept on a rough inclined surface of inclina

1.	A small block of mass m is kept on a rough inclined surface of inclination theta fixed in an elevator. The elevator goes up with a uniform velocity V and the block does not slide on the wedge. The work done by the force of friction on the block in a time t will be
Answer» ZERO `mgvt cos^(2)theta` `mgvt SIN^(2)theta` `1/2mgvt SIN2THETA` Answer :C