Question

A 1,210 kg car going 32 m/s is brought to a stop using its brakes. Let's...

A 1,210 kg car going 32 m/s is brought to a stop using its brakes. Let's assume that a total of approximately 28 kg of iron in the brakes and wheels absorbs the heat produced by the friction.

(a)What was the car's original kinetic energy (in J)?
________J

(b)After the car has stopped, what is the change in temperature (in °C) of the brakes and wheels?

________ °C

0 0
Add a comment Improve this question Transcribed image text
Know the answer?
Add Answer to:
A 1,210 kg car going 32 m/s is brought to a stop using its brakes. Let's...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • A 2500 kg car is traveling 25 m/s and brakes to a stop. This causes the...

    A 2500 kg car is traveling 25 m/s and brakes to a stop. This causes the brakes to heat up as the car’s kinetic energy is converted to thermal energy. If the heat in the brakes could be captured and applied to ice at 0 degrees Celsius, how much could it melt?

  • A 1200-kg car going 30 m/s applies its brakes and skids to rest

    A 1200-kg car going 30 m/s applies its brakes and skids to rest. If the friction force between the sliding tires and the pavement is 6000 N, how far does the car skid before coming to rest? Can you help me get the formula to use . Thanks

  • Question 181 A car moving at 20 m/s brakes and slides to a stop. If the...

    Question 181 A car moving at 20 m/s brakes and slides to a stop. If the coefficient of kinetic friction between the pavement and the tires of the car is 0.1, how far does the car slide? O A. 50 m O B. 100 m O C. 200 m O D. 400 m

  • A car of mass 875 kg is traveling 30.0 m/s when the driver applies the brakes,...

    A car of mass 875 kg is traveling 30.0 m/s when the driver applies the brakes, which lock the wheels. The car skids for 5.60 s in the positive -direction before coming to rest. (a) What is the car's acceleration? (b) What magnitude force acted on the car during this time? (c) How far did the car travel? [Ans: ()-536 m/s (b) 4690 N(c) 84,0 m]

  • A car of mass 772 kg is traveling 24.4 m/s when the driver applies the brakes,...

    A car of mass 772 kg is traveling 24.4 m/s when the driver applies the brakes, which lock the wheels. The car skids for 5.27 s in the positive x-direction before coming to rest. a). What is the car's acceleration (in m/s2)? (Indicate the direction with the sign of your answer.) b). What magnitude force (in N) acted on the car during this time? c). How far (in m) did the car travel?

  • 12. A 1,000 kg car moves at 5 m / s when the brakes are applied,...

    12. A 1,000 kg car moves at 5 m / s when the brakes are applied, stopping after 5 seconds. The average force exerted on the car is ___N. 13. There is a 3 kg stone attached to a rope, describing horizontal circles of 1.2 m radius on a frictionless table, with angular velocity of 1.67 rads / s. The tension in the rope is approximately ___N. 14. A 2 kg object slides down a 10-meter ramp, from a height...

  • 5, Some of the funniest videos on the web involve motorists sliding uncontrollably on icy roads. Here let's compare the typical stopping distances for a car sliding to a stop from an initial...

    5, Some of the funniest videos on the web involve motorists sliding uncontrollably on icy roads. Here let's compare the typical stopping distances for a car sliding to a stop from an initial speed of 10.0 m/s on a dry horizontal road, an icy hori- zontal road, and (everyone's favorite) an icy hill. (a) How far does the car take to slide to a stop on a hori- zontal roadi if the coefficient of kinetic friction is = 0.60, which...

  • 17) Determine the work, in J, required to stop a 1500-kg car traveling at 30 m/s....

    17) Determine the work, in J, required to stop a 1500-kg car traveling at 30 m/s. (hint: use the work-energy theorem). a) 2.4 x 105 b) 8.2 x 105 c) 1.7 x 105 d) 6.8 x 105 Answer_______________ 18) 10 J of heat are removed from a gas sample while it is being compressed by a piston that does 30 J of work. Determine, in J, the change in thermal energy of the system. a) 4 b) 10 c) 20...

  • please answer 2 questions pleaeeee #o: A 600-kg car traveling at 24.5 m/s is going around...

    please answer 2 questions pleaeeee #o: A 600-kg car traveling at 24.5 m/s is going around a curve having a radius of 120 m that is banked at an angle of 20°. (a) Draw a free body diagram (b) What is the reaction of the road on the car? (c) Is the curve properly banked for the car's speed? (d) What is the minimum coefficient of static friction required between the road and the car's tires so the car does...

  • A ball of soft clay with mass 1 kg falls from a height of 10 m...

    A ball of soft clay with mass 1 kg falls from a height of 10 m starting at rest. When the clay hits the ground it flattens and comes to a stop. Which of the following is true? Gravity does work on the ball equal to 980 J, and all this energy is dissipated during the deformation of the ball on impact. Gravity does work on the ball equal to 98 J, and all of this energy is dissipated during...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT