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scoundrel [369]
2 years ago
10

A car’s speed before a sudden stop can be estimated by the formula

Mathematics
1 answer:
Veseljchak [2.6K]2 years ago
6 0

Answer:

S = 30 mph

Step-by-step explanation:

A car’s speed before a sudden stop can be estimated by the formula :

S=\sqrt{30gk}

Here,

S = speed of the car in mph,

g = drag factor, and

k = length of skid mark in feet

If drag factor is 1, k = 30 feet

So,

S=\sqrt{30\times 1\times 30}\\\\S=30\ mph

Therefore, the correct option is (a) 30 mph.

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