A student drives by a stationary police car at 41.7m/s, exactly 7s later the policeman starts after the speeding car, accelerating at a steady 3.75m/s2. How long after the police car begins moving does it take to catch up with the speeding car. i got 34.8s but its wrong, can anyone explain it. Xcar= 291.9+41.7t Xpolice= 1.875t2 Xcar=X police 1.875t2-41.7t-291.2 t=34.8s

At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get our expert's

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this and thousands of other questions.

A community for students.

A student drives by a stationary police car at 41.7m/s, exactly 7s later the policeman starts after the speeding car, accelerating at a steady 3.75m/s2. How long after the police car begins moving does it take to catch up with the speeding car. i got 34.8s but its wrong, can anyone explain it. Xcar= 291.9+41.7t Xpolice= 1.875t2 Xcar=X police 1.875t2-41.7t-291.2 t=34.8s

Physics
See more answers at brainly.com
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this and thousands of other questions

equation i used was Xf= Xi +Vit+ (1/2)at^2
Is 291.9 the distance the car travels in seven seconds?
yea

Not the answer you are looking for?

Search for more explanations.

Ask your own question

Other answers:

Looks good. Double check that you used the correct solution to the quadratic.
Maybe its just a typo in the solution manual......it has 23.8s
The math gods seem to agree. http://www.wolframalpha.com/input/?i=0.5*3.75*%28t-7%29%5E2+%3D+41.7*t
I get 27.833 s.
@mathmate did you use the same equation?
I used your equation (corrected) and got 27.833, which is the same answer as eashmore's answer by subtracting 7 seconds.
Can you double check the data (speed, acceleration, 7 seconds, etc.)
Note that the clock starts when the police car moves, which is t=7 in eashmore's equation.
yea data is correct.......since the police car moves 7 seconds later i have cars position as t+7
Here is a better representation : http://www.wolframalpha.com/input/?i=0.5*3.75*%28t%29%5E2+%3D+41.7*%28t%2B7%29
ok, thanks a lot
Guess the answer key has a typo!

Not the answer you are looking for?

Search for more explanations.

Ask your own question