4) A car of mass 1.4 tons travelling along a straight road at aconstant speed, then the driver accelerates to a speed of 46m/s by applying an extra force of 800 N from the engine for 3 seconds.
a) What is the change of the cars momentum?
b) Calculate the car's initial speed before acceleration.4) A car of mass 1.4 tons travelling along a straight road at aconstant speed, then the driver accelerates to a speed of 46m/s by applying an extra force of 800 N from the engine for 3 seconds.
a) What is the change of the cars momentum?
b) Calculate the car's initial speed before acceleration.
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4) A car of mass 1.4 tons travelling along a straight road at aconstant speed, then the driver accel...
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