A car of mass 800 kg as shown in the figure is subject to three forces F1, F2, and F3. The two forces F1=1000 N and F2=500 N are directed along the +X direction. Third force F3 is not shown in the figure. Ignore the effect of frictional force exerted by the tires on the road.         a) Suppose the car is stationary, then what is the direction and magnitude of the force F3?       b) The car started moving and attained a velocity of  +500 m/s in 10 second due a change in F3. What will be the new direction and magnitude of the the force F3?        c) How far does the car traveled during this 10 second time interval?

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