An object of mass `2kg` is sliding with a constant velocity of `4ms^(-1)` on a frictionless horizontal table. The force required to keep the object moving with the same velocity is

An object of mass 2 kg is moving with constant velocity of 4 ms^(-1) on a frictionless horizontal surface. If the object is to be kept moving with the same velocity, the magnitude of the external force required would be ....... N.

A body of mass 40 gm is moving with a constant velocity of 2cm//sec on a horizontal frictionless table. The force on the table is

A body of mass 40 gm is moving with a constant velocity of 2cm//sec on a horizontal frictionless table. The force on the table is