The tires of a car make 75 revolutions as the car reduces its speed uniformly from 90.0 km/h to 59.0 km/h . the tires have a dia
1 answer:
To determine how far the car goes, we have to know the distance covered by the 75 revolutions of the tires of the car. To do this, we have to calculate for the perimeter of the tire, then multiply it to the number of revolutions.
Distance =
where pi*d is the circumference of the tire
Distance = 75 * pi * 0.90 m
Distance = 212.06 m
The car covers a distance of 212.06 m as it slows down.
Distance =
where pi*d is the circumference of the tire
Distance = 75 * pi * 0.90 m
Distance = 212.06 m
The car covers a distance of 212.06 m as it slows down.
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Answer:
η = 58.8%
Explanation:
Work is defined as the force applied by the distance traveled by the body.
where:
W = work [J] (units of joules)
F = force = 294 [N]
d = distance = 5 [m]
Efficiency is defined as the energy required to perform an activity in relation to the energy actually added to perform some activity. This can be better understood by means of the following equation.