Plug in 1 for n and solve, then plug in 2, and so on until you get to 3(6)-1=17
The answer is: 15 .
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{Note: If this is a physics problem ; and the formula: "F = m*a" is for:
"Force = mass * acceleration" ; be sure that the correct units are used!}.
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Explanation:
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F = m * a ;
Given m = 5 ;
a = 3 ;
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F = 5 * 3 = 15 .
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There are 5280 feet to 1 mile, and 3600 seconds to 1 hour. So
(25 mi/h) × (5280 ft/mi) × (1/3600 h/s) = 110/3 ft/s ≈ 36.7 ft/s
