In the above question, the speed of the particle at origin will be:

In the above question the mass of the particle is

In the above question, the radius of path of the particle will be

In the above question, escape speed from the centre of earth is :

A particle is moving along a circular path of radius 0.7 m with constant tangential acceleration of 5 m cdot s^(-2) . The particle is initially at rast. Based on the above information, answer the following questions : The speed of the particle after 7 s is