The Velocity of A $3.2 - \mathrm { kg }$ Particle Is Given By

Multiple Choice

The velocity of a $3.2 - \mathrm { kg }$ particle is given by $v ( t ) = c t ^ { 2 }$ , where $c = 2.1 \mathrm {~m} / \mathrm { s } ^ { 3 }$ . What is the force acting on the particle at time $t = 5$ seconds?

A) 48 N
B) 67 N
C) 34 N
D) 41 N