If a car generates 18hp (which is 13428watts) when traveling at a steady speed of 88km/h (which is 24.44m/s), what must be the average force exerted on the car due to friction and air resistance?

Explanation:

549N

parameters given

power generated by car, P = 18hp =13428W

steady speed , S = 24.44m/s

force, F = ?

For a car that is moving with steady speed (constant). Power the car generates is what it used to overcome force of friction. so

P = F X S

making P the subject of the formula

F = P/S

using the SI unit

= 13428/24.44

F = 549N

this is an example of "committed" time.

committed time, as contracted time, takes need over essential and available time since it is seen as profitable work. it alludes to the time allotted to keep up a home and family. at the point when a man is commuting using committed time this individual may feel that the drive is an obligation to family, for example, strolling youngsters to class or driving a mate to work. contracted and committed time clients may feel that their commute could really compare to the commute of important or leisure time clients on the grounds that their commute is profitable work. in this manner, they might be more disposed to pick a mechanized method of movement.  

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