Suppose an initial speed of 21.4 ms at an angle of 61.10deg, Ask an Expert

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Q1. Suppose an initial speed of 21.4 m/s, at an angle of 61.10° with respect to the positive x axis. Find the velocity at time t0; enter x component, after that the y component.

Q2. Make an order-of-magnitude estimate of the number of revolutions through that a typical automobile tire turns in 1 yr. State the quantities you measure or estimate and their values. (Estimate the tire's radius at 0.250 m and miles driven as 10 000 per year)

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