Question

suppose a race car driver increases his speed at a constant rate.What will his speed be after 15 seconds,if his initial speed is 85mph and his rate of acceleration is 4.5mph per second?

Answer 1

4.5 * 15 seconds = 67.5 mph

85 mph + 67.5 mph = 152.5 mph

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Answer 2

\[v_1=v_0+a\Delta t\]

Answer 3

find the sum of the first 50 terms of an arithmetic series where