A particle with charge q and mass m moving with speed v in the x direction enters a magnetic field of strength B pointing in the y direction. The magnitude of the acceleration of the particle as it travels one semicircle is

The acceleration of the particle as it travels one semicircle is

Explanation:'

Kindly see attached a sketch of a semi-circle

Step one:

given data

velocity =v

let the time taken be t

The path PQM is the distance covered

so distance

we know that time= distance/velocity

t= πR/v

step two:

velocity =distance/time

also, we know that acceleration is velocity/time