The total energy possed by a system of moving bodies is

varies according to the direction of movement

constant at any point in time

hyperbolically decreasing over time

none of these

2044 N

1200 N

120 N

None of these

10 power -3 N

10 power -4 N

10 power -5 N

10 power -6 N

They are the forces which meet at one point with lines of action lying on separate planes.

They are the forces which meet at one point with lines of action lying on same plane.

They are the forces which meet at different points with their lines of action lying on the same plane.

None of these

Kinetic friction

Static Friction

Internal friction

None of these