« previous next »

Author Question: As a car goes up a hill, there is a force of friction between the road and the tires rolling on the ... (Read 121 times)

tatyanajohnson

  • Hero Member
  • *****
  • Posts: 569
on: Jul 28, 2018
As a car goes up a hill, there is a force of friction between the road and the tires rolling on the road. The maximum force of friction is equal to:
 a. the weight of the car times the coefficient of kinetic friction.
  b. the normal force of the road times the coefficient of kinetic friction.
  c. the normal force of the road times the coefficient of static friction.
  d. zero.

Question 2

A 250-kg crate is placed on an adjustable inclined plane. If the crate slides down the incline with an acceleration of 0.25 m/s2 when the incline angle is 25, then what should the incline angle be for the crate to slide down the plane at constant speed? Note: g = 9.8 m/s2.
 a. 12
  c. 24
  b. 21
  d. 29


akpaschal

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

Muscle length versus isometric force Muscle length versus isometric force
Apply circular friction with the fingertips over the masseter muscle. Apply circular friction with the fingertips over the masseter muscle.
Deep friction around the hip joint using the knuckles. Use the knuckle of the middle finger to apply ... Deep friction around the hip joint using the knuckles. Use the knuckle of the middle finger to apply ...
Apply thumb pressure to forearm muscles, particularly the extensors muscles. Apply circular friction ... Apply thumb pressure to forearm muscles, particularly the extensors muscles. Apply circular friction ...
Superficial friction with palms along back. Hands are perpendicular to the spine; apply friction ... Superficial friction with palms along back. Hands are perpendicular to the spine; apply friction ...
Question about Resultant of gravitational force? Question about Resultant of gravitational force?
Video: Coronary Heart Disease Animation

For a complete list of videos, visit our video library