Find what is the force of friction

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Reference no: EM13716994

Solve the all parts of given problem:

Problem: Suppose a car travels 108 km at a speed of 40.0 m/s, and uses 2.10 gallons of gasoline. Only 30% of the gasoline goes into work done against friction. (The energy content of gasoline is 1.3 x 108 J per gallon.)

Part A: What is the force of friction?

Part B: If friction is directly proportional to speed, how many gallons will be used to drive 108 km at a speed of 28.0 m/s?

Please show all work and steps I am really trying to learn this for my test.

Reference no: EM13716994

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