An object of mass $100 \,kg$ is accelerated uniformly from a velocity of $5 \,m \,s^{-1}$ to $8 \,m \,s^{-1}$ in $6 \,s$. Calculate the initial and final momentum of the object. Also, find the magnitude of the force exerted on the object.

• A
  $100 \,kg \,m \,s^{-1}$ and $200 \,kg \,m \,s^{-1}$, $30 \,N$
• B
  $300 \,kg \,m \,s^{-1}$ and $500 \,kg \,m \,s^{-1}$, $20 \,N$
• C
  $400 \,kg \,m \,s^{-1}$ and $600 \,kg \,m \,s^{-1}$, $40 \,N$
• D
  $500 \,kg \,m \,s^{-1}$ and $800 \,kg \,m \,s^{-1}$, $50 \,N$