The coefficient of static friction between the tires of a car and ahorizontal ro

Question

The coefficient of static friction between the tires of a car and ahorizontal road is µs = 0.66. (a) If the net force on the car is the force ofstatic friction exerted by the road, what is the maximumacceleration of the car when it is braked?
m/s2

(b) What is the least distance in which the car can stop withoutskidding if it is initially traveling at 30 m/s?
m ------------------------------------------------------------------------------------------------------ A 4.4 kg block is heldat rest against a vertical wall by a horizontal force of135 N. (a) What is the magnitude of the frictionalforce exerted by the wall on the block?
N

(b) What is the magnitude of the minimum horizontal force needed toprevent the block from falling if the coefficient of frictionbetween the wall and the block is µs =0.40?
N (a) If the net force on the car is the force ofstatic friction exerted by the road, what is the maximumacceleration of the car when it is braked?
m/s2

(b) What is the least distance in which the car can stop withoutskidding if it is initially traveling at 30 m/s?
m ------------------------------------------------------------------------------------------------------ A 4.4 kg block is heldat rest against a vertical wall by a horizontal force of135 N. (a) What is the magnitude of the frictionalforce exerted by the wall on the block?
N

(b) What is the magnitude of the minimum horizontal force needed toprevent the block from falling if the coefficient of frictionbetween the wall and the block is µs =0.40?
N (a) What is the magnitude of the frictionalforce exerted by the wall on the block?
N

(b) What is the magnitude of the minimum horizontal force needed toprevent the block from falling if the coefficient of frictionbetween the wall and the block is µs =0.40?
N

Explanation / Answer

m = 4.4 kg F = 135 N = 0.4 (a) Fy = 0 f - w = 0 f = mg (b) Fy = 0 mg = f = n = F F = mg/

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.