question_answer

A number of discs, each of momentum M kg m/s are striking a wall at the rate of n discs per minute. The force associated with these discs, in new tons, would be

A)  \[\frac{Mn}{60}\]                             

B)         \[60\,mn\]

C)  \[\frac{M}{60\,n}\]                       

D)  \[\frac{n}{60M}\]