# Solution: A particle of mass m is at rest at t = 0. Its momentum for t &gt; 0 is given by p  x = 6t2  kg•m/s, where t is in s. Find an expression for Fx(t), the force exerted on the particle as a function of time.

###### Problem

A particle of mass m is at rest at t = 0. Its momentum for t > 0 is given by p  x = 6t2  kg•m/s, where t is in s. Find an expression for Fx(t), the force exerted on the particle as a function of time.