3.pl The energy stored in gasoline is approximately 3.50x10 per litre: 25% of this is converted...
3. [1pt] The energy stored in gasoline is approximately 3.50×104 kJ per litre; 25% of this is converted into useful work by an automobile. When you drive on the highway at constant speed, most of the work the car does is against the drag force. Assuming there is no wind, how far can the car travel on a level road at 28.2 m/s with 11 L of gasoline? The force due to air resistance is F = Dv2, where D...
4. In a collision which of the following quantities is always conserved? A). Acceleration B). Energy C). Kinetic Energy D). Momentum 5. If the applied force is perpendicular to the motion of the object then the Work done by the force is ___ A). Negative B). Positive C). Zero 6. A car, travelling at 40m/s slows to 10m/s in 5 seconds. What was the acceleration? A). -6 m/s? B). -4m/s2 C).-2 m/s2 D). -9.8m/s 7. A ball thrown straight up...