A car with its passengers have a total mass of 4200kg .the car is travelling along a horizontal road when it moves ,it experiences a forward driving force of magnitude F newtons and a constant resistance force(opposite to driving force)of 850N
a)what is the value of F if the car travels at a constant speed ?
b)find the value of F if the car accelecrates at 1.8 m/s2
c) if F =1800,find the acceleration of the car and describ what is happing to the speed of the car????
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