Paul drove for one and a half hours at 65 mph before he realized he had forgotten his wallet. How far was he from home?

Answer 1

This question is asking about the body's displacement, assuming constant velocity. Given,

#nu = (65"mi")/"h" * (1609"m")/"mi" * "h"/(3600"s") approx (29"m")/"s"#
#t = 1.5"h" * (3600"s")/"h" = 5400"s"#

Now, recall,

#nu = (Deltax)/t#

Hence, this man drove,

#=> Deltax = nu*t approx 1.6*10^5"m"#

before remembering about his wallet. He better pray he doesn't get pulled over on the way home!

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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