All objects having uniform speed need not have uniform velocity. Give reason.

What is uniform velocity? Give one example.

An object may have

What is non-uniform velocity? Give example.

Metals have high thermal conductivity. Give reason.

The centre of mass of an object is the point inside or outside the object at which the total mass of the object can be assumed to be concentrated. The centre of mass of spherical object having uniform density is a its geometrical centre. The centre of mass of any object having uniform density is at its centroid. Where is the centre of mass located for an object of uniform density?

The centre of mass of an object is the point inside or outside the object at which the total mass of the object can be assumed to be concentrated. The centre of mass of spherical object having uniform density is a its geometrical centre. The centre of mass of any object having uniform density is at its centroid. Where can the total mass of an object be assumed to be concentrated?

The centre of mass of an object is the point inside or outside the object at which the total mass of the object can be assumed to be concentrated. The centre of mass of spherical object having uniform density is a its geometrical centre. The centre of mass of any object having uniform density is at its centroid. Where is the centre of mass located for a spherical object?

The centre of mass of an object is the point inside or outside the object at which the total mass of the object can be assumed to be concentrated. The centre of mass of spherical object having uniform density is a its geometrical centre. The centre of mass of any object having uniform density is at its centroid. What was basis of Kepler's laws?

A particle moves in a region having a uniform magnetic field and a parallel, uniform electric field. At some instant, the velocity of the particle is perpendicular to the field direction. The path of the particle will be