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A car drives around a curve with radius 405 m at a speed of 39 m/s. The road is banked at 4.7o. The mass of the car is 1600 kg.
(a) What is the frictional force on the car?
(b) At what speed could you drive around this curve so that the force of friction is zero?
The scalar product cannot have units. If the scalar product of two nonzero vectors is zero, then they are parallel. If the scalar product of two nonzero vectors is equal to the product of their magnitudes, then the two vectors are parallel.
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q. an airplane takes off from the only airstrip in a remote area of canada flies 68.0deg north of east for 177 km then
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