[#664a] Car physics, part 2. A car has a drag coefficient Ca = 0.30, a frontal area of A = 1.9 m² and a mass 1.2 tonnes. It has a coefficient of rolling resistance, C,, = 0.012. The rolling resistance is a force F, = C,N, where N is the normal force. i) What is F, when traveling at v = 110 kph on horizontal road? F= N, Hint: Retain accurate values until the final calculation, but remember significant figures.

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5. [#664a] Car physics, part 2.
A car has a drag coefficient Cả = 0.30, a frontal area of A = 1.9 m² and a mass 1.2 tonnes. It has a coefficient of rolling
resistance, C, = 0.012. The rolling resistance is a force F, = C,N, where N is the normal force.
i) What is F, when traveling at v =
110 kph on a horizontal road? F=
N,
Hint: Retain accurate values until the final calculation, but remember significant figures.
X Incorrect
6. [#664b] Car physics, part 2.
Using the information from #664a above:
ii) What power (in kilowatts) is required to overcome F, at this speed? P=
kW .
Hint: Retain accurate values until the final calculation, but remember significant figures.
X Incorrect
Transcribed Image Text:5. [#664a] Car physics, part 2. A car has a drag coefficient Cả = 0.30, a frontal area of A = 1.9 m² and a mass 1.2 tonnes. It has a coefficient of rolling resistance, C, = 0.012. The rolling resistance is a force F, = C,N, where N is the normal force. i) What is F, when traveling at v = 110 kph on a horizontal road? F= N, Hint: Retain accurate values until the final calculation, but remember significant figures. X Incorrect 6. [#664b] Car physics, part 2. Using the information from #664a above: ii) What power (in kilowatts) is required to overcome F, at this speed? P= kW . Hint: Retain accurate values until the final calculation, but remember significant figures. X Incorrect
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