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What is the Magnitude of Net Force?

A 1700 kg car is traveling along a straight road at 19 m/s. Two seconds later its speed is 23 m/s.

What is the magnitude of the net force acting on the car during this time?


23-19 = 4

This means that after 2 seconds it is 4m/s faster. After 1 second it would only be half of 4 m/s which is 2 m/s.

From this you get that the acceleration is 2m/s.


F = ma


1700 x 2 =


= 3400 N

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