A system of particles of total mass $2$ kg is moving with velocity of center of mass v with rightwards arrow on top equals $2$ t squared space i with hat on top space plus space $3$ t space j with hat on top $.$ The force, in Newton, exerted on the system at t $=1$ sec$.$ is

a$.$

$8$ i with hat on top plus $12$ j with hat on top

b$.$

$12$ i with hat on top plus $9$ j with hat on top

c$.$

$16$ i with hat on top plus $12$ j with hat on top

d$.$

$8$ i with hat on top plus $6$ j with hat on top

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The question is asking about the force exerted on a system of particles at a specific moment in time ... View the full answer