Is it possible for a particle to describe a curved path if no force acts on it? Does your answer depend on the frame of ereference chosen to view the particle?

Is it possible for a hydrogen (""_(1)^(1)H) nucleus to emit an alpha particle ? Give a reason for your answer.

The acceleration of a particle is zero as measured from an inertial frame of reference. Can we conclude that no force acts on the particle?

Gravitational force acts on a particle due to fixed uniform solid sphere. Neglect other forces. Then particle

Describe the motion of a particle acted upon by the force:

For a particle moving on a curved path kinectic energy is given as k=AS where S is distance moved and A is constant quantity .Net force acting on particle is

Statement 1: A charged particle undergoes non-rectilinear motion in a constant magnetic field. The only force acting on the particle is the magnetic force. Then kinetic energy of this particle remains constant but momentum of the particle does not remains constant. Statement 2: A force that always acts on the particle in direction perpendicular to its velocity does no work on the particle. But whenever a force acts on the particle, momentum of the particle does not remains constant.

One of the forces acting on the particle is conservative, then

The momentum of a moving particle given by p=tl nt . Net force acting on this particle is defined by equation F=(dp)/(dt) . The net force acting on the particle is zero at time

A tangential force of F = 1.5 N acts on a particle of mass m = 2 kg revolving in a circular path of radius r = 3 m. What is the work done by the torque for a complete revolution of the particle ?

A charged is moving with constant velocity parallel to a horizontal current carrying long wire. The direction of velocity of that particle and the current are same. If the force acting on the particle are only magnetic force due to wire and gravitational force due to earth, then the particle :