How high a hill can a car coast up (engine disengaged) if work done by friction is negligible and its initial speed is 155 km/h? (Free-falling acceleration g =10 m/s 2) None of the answers 0.0927 km 927 km 92.7 km 927 m

How high a hill can a car coast up (engine disengaged) if work done by friction is negligible and its initial speed is 155 km/h? (Free-falling acceleration g =10 m/s 2) None of the answers 0.0927 km 927 km 92.7 km 927 m

Name: 6How high a hill can a car coast up (engine disengaged) if work done
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: 6How high a hill can a car coast up (engine disengaged) if work done by friction is negligibleand its initial speed is 155 km/h? (Free-falling acceleration g =10 m/s^2). *O None of the answersO 0.0927 kmO 9.27 kmO 92.7 kmO 927 m

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

A bag of sand which acts as a counter weight for a stage set is suspended vertically by a rope of length L = 6.00 m and has a mass m = 132 kg. If a stagehand pushes the bag of sand a distance d = 5.00 m sideway: (a) the horizontal force needed in order to hold the bag at this position (b) the amount of work done on the bag by gravity as the stagehand pushes it to this position (Include the sign of the value in your answer.) (c) the amount of work done by the stagehand as he pushes the bag to this position (Include the sign of the value in your answer.)
A skier of mass 61 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him 80 m up a 30° slope (assumed frictionless) at a constant speed of 2.9 m/s? KJ (b) What power (expressed in hp) must a motor have to perform this task? hp
How much work is done by the horizontal force Fp of magnitude 100 N when it pushes the 20.0 kg block 5.00 meters up the incline? Take 6 = 30.0°. (as written on the formula sheet cos(30) = 3 and sin(30) = ½) F₁ O 500√3 J O 250 J ○ 250/3 J 00J ○ 500 J Initial Final Fp 5 m
Answer
A person holds a bundle of hay over his head for 30 minutes and gets tired. Has he done some work or not? Justify your solution.
being pulled 0.50 meter along a plane inclined at 15° to the horizontal. The amount of work required is 1.3 joules. 0.50 m 19 20 15° Horizontal If the cart was raised 0.50 meter vertically instead of being pulled along the inclined plane, the amount of work done would be (1) 0.0 J (2) 1.3 J (3) 4.9 J (4) 9.8 J 14. A crane raises a 200-newton weight to a height of 50 meters in 5 seconds. The crane does work at the rate of 21. (1) 8 x 10-1 w (2) 2 x 101 w (3) 2 x 103 w (4) 5 x 104 w 15. What is the maximum amount of work that a 5000.-watt motor can do in 10. seconds? 22. (1) 5.0 x 101 J (2) 5.0 x 102 J (3) 5.0 x 103 J (4) 5.0 x 104 J 16. An engine rated at 5.0 X 104 watts exerts
A bucket of water of mass 15 kg is pulled at constant velocity up to a platform 55 meters above the ground. This takes 8 minutes, during which time 8 kg of water drips out at a steady rate through a hole in the bottom. Find the work needed to raise the bucket to the platform. (Use g = 9.8m/s².) = Work = |
IfR- 2 Ω, Find (a) the equivalent resistance between points A and B (b) the equivalent resistance between points A and C 2R A 2R to
The potential energy, in Joules, of a 0.20 kg particle moving along the x axis is given by U(x) = 8x2 - 2x4. When the particle is at x = 1.0 m the magnitude of its acceleration is
A box is supported by a 5.2 N vertical force and carried 2.3 m horizontally across a room at constant speed. Then, the same box is pushed 2.3 m horizontally across a smooth table (smooth enough to ignore friction) by a 5.2 N horizontal force. In which case was more work done on the box by the 5.2 N force?
Use Maple
Problem 2: Suppose a car approaches a hill and has an initial speed of 108 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. a) If the car has the initial speed stated at a height of h = 0, how high, in meters, can the car coast up a hill if work done by friction is negligible? b) If, in actuality, a 770-kg car with an initial speed of 108 km/h is observed to coast up a hill and stops at a height 20.5m above its starting point, how much thermal energy was generated by friction in J?