ZuoTi.Pro
Question

A car of mass 850 kg is initially moving at 110 km/h at the bottom of...

A car of mass 850 kg is initially moving at 110 km/h at the bottom of a large hill. Friction coefficient of 0.9 (rubber on dry asphalt)

a) How high up the hill can the car coast (engine disengaged), if work done by friction is negligible?

b) If, in actuality, the car is observed to coast up to a height of 22.o m above its starting point, how much thermal energy was generated by friction?

science   physics   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
A car of mass 850 kg is initially moving at 110 km/h at the bottom of...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

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) How high a hill can a car coast up (engine disengaged) if friction is negligible...

    a) How high a hill can a car coast up (engine disengaged) if friction is negligible and its initial speed is 78.0 km/h? m (b) If, in actuality, a 750 kg car with an initial speed of 78.0 km/h is observed to coast up a hill to a height 10.0 m above its starting point, how much thermal energy was generated by friction? J (c) What is the average force of friction if the hill has a slope 2.5° above...

  • If a 791 kg car with an initial speed of 117.1 km/h is observed to coast...

    If a 791 kg car with an initial speed of 117.1 km/h is observed to coast up a hill to a height 22.9 m above its starting point, how much thermal energy was generated by friction? Give your answer in kilojoules.

  • a hill and has an initial speed of 118 km/h at the bottom of the hill....

    a hill and has an initial speed of 118 km/h at the bottom of the hill. The driver takes her foot off of the gas pedal and allows the car to coast up the hill. 33% Part (b) If, in actuality, a in J? Potential 96% 1 23 02

  • A moving car approaches a hill that is 23.031 m high and at an angle of...

    A moving car approaches a hill that is 23.031 m high and at an angle of 20 degrees. The coefficient of static friction is 0.523. How fast is the car moving if it just manages to coast from the bottom the hill and make it to the top?

  • A moving car approaches a hill that is 17.218 m high and at an angle of...

    A moving car approaches a hill that is 17.218 m high and at an angle of 20 degrees. The coefficient of static friction is 0.33. How fast is the car moving if it just manages to coast from the bottom the hill and make it to the top?

  • A car of mass 2.0 x 103 kg is initially moving at 75 km/h when the...

    A car of mass 2.0 x 103 kg is initially moving at 75 km/h when the brakes are applied and the car is brought to a stop in 25 m. Assuming the force that stops the car is constant, find the magnitude of that force that stop the car. A. - 15.73x103 N B. -17.3x103 N C. 16.73x103 N D. 12.73x103 N

  • Please help with BOTH parts. [1] A driver of a car of mass 1000 kg, initially...

    Please help with BOTH parts. [1] A driver of a car of mass 1000 kg, initially moving at 25 m/s, slams on his breaks to avoid a family of ducks crossing the road. His tires lock and the car begins to skid. The coefficient of kinetic friction between the tires and the road is ' K = 0.5 . (a) How far does the car slide before coming to rest? (b) How much heat is generated by the friction during...

  • A car that weighs 1.4×104 N is initially moving at a speed of 50 km/h when...

    A car that weighs 1.4×104 N is initially moving at a speed of 50 km/h when the brakes are applied and the car is brought to a stop in 15 m. Assuming that the force that stops the car is constant, find the magnitude of that force. Incorrect. Tries 5/20 Previous Tries Find the time required for the change in speed. Tries 0/20 If the initial speed is, instead, twice as great, and the car experiences the same force during...

  • A 1000 kg race car starts from rest and reaches a speed of 100 km/h in...

    A 1000 kg race car starts from rest and reaches a speed of 100 km/h in 20 s. What is the power delivered by the car’s engine? (2 points). A 1 kg mass is released from the top of a smooth slide of height 2m. At the bottom of the slide the mass slides on a horizontal surface and stops at a distance of 5 m. What is the coefficient of kinetic friction of the horizontal surface? (3.5 points). The...

  • Additional info: Meal = 1720 Kilocalories Mass of myself = 50 kg The Joule () is...

    Additional info: Meal = 1720 Kilocalories Mass of myself = 50 kg The Joule () is the SI unit of energy. (J = kg:m? S2 A calorie is another unit of energy. The definition of a calorie is the amount of heat (energy) necessary to raise the temperature of Ig of water by 1° Celsius. Ig of water occupies 1 milliliter (ml) = 1 cubic centimeter (cm) of volume. lkcal=4186J Energy comes in many forms and energy may be converted...

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