Can an object move along a curved path if no force acts on it?

As an object revolves in a circular path of radius r, a force F is acting on it such that its direction is perpendicular to that of he instantaneous velocity v of the object. Work done by the force in one complete revolution is

Statement I : For a charged particle moving form point P to point Q, the net work done by an electrostatic field on the particle is independent of the path connecting points P and Q. Statement II : The net work done by a conservative force on an object moving along a closed loop is zero.

A particle moves along a circular path of radius 7 cm. Estimate the distance covered and displacement when the particle (i) covers half circular path and (ii) completes the total circular path once.

Velocity of a car along a curved path of radius of curvature 100 m is 36 km cdot h^(-1) . What is the angular velocity of the car?

An electron moving at right angle with a uniform magnetic field revolves along a cirular path. To reduce the radius of that circular path to half, the magnetic field should be ______ [Fill in the blank]