Weight and mass of an object are defined with Newton's laws of motion. Which among the following is true ?

Which one of the following equations related to the motion of an object is NOT correct? (Symbols carry their usual meanings)

The weight of an object is due to

An object is dropped from a height onto the floor, Which one of the following remains uniform as it falls?

If an object of mass 10 kg is moving with a uniform speed of 10 m/s, then the linear momentum and the kinetic energy of the object, respectively, are

Which one of the following statements about speed and velocity is correct?