Home > Physics > Displacement and Velocity

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

Lily Adams

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!

By signing up, you agree to our Terms of Service and Privacy Policy

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.

Trending questions

Not the question you need?

HIX Tutor

Solve ANY homework problem with a smart AI

98% accuracy study help
Covers math, physics, chemistry, biology, and more
Step-by-step, in-depth guides
Readily available 24/7