The speed of a vehicle is increasing at a rate of 7.3 meters per second squared. What is this rate,

Question

The speed of a vehicle is increasing at a rate of $7.3$ meters per second squared. What is this rate, in miles per minute squared, rounded to the nearest tenth? $left parenthesis Use 1 mile equals 1,609 meters period right parenthesis$

A.

$0.3$

B.

$16.3$

C.

$195.8$

D.

$220.4$

Accepted Answer

Choice B is correct. It's given that the speed of a vehicle is increasing at a rate of 7.3 meters per second squared. It's given to use 1 mile = 1,609 meters . There are 60 seconds in 1 minute; therefore, 60 2 or 3,600 seconds squared is equal to 1 minute squared. It follows that the rate of 7.3 meters per second squared is equivalent to 7.3 meters 1 second squared 1 mile 1,609 meters 3,600 seconds squared 1 minute squared , or approximately 16.33 miles per minute squared . The rate, in miles per minute squared , rounded to the nearest tenth is 16.3 . Choice A is incorrect and may result from conceptual or calculation errors. Choice C is incorrect and may result from conceptual or calculation errors. Choice D is incorrect and may result from conceptual or calculation errors.

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