Math  /  Algebra

Question3:58
Answer: Exercise 8: \quad Skye is trying to make her 70.0kg70.0-\mathrm{kg} Saint Bernard go out the back door but the dog refuses to walk. If the coefficient of sliding friction between the dog and the floor is 0.50 , how hard must Skye push in order to move the dog with a constant speed?
Answer \qquad Exercise 9: Rather than taking the stairs, Martin gets from the second floor of his house to the first floor by sliding down the banister that is inclined at an angle of 30.030.0^{\circ} to the horizontal. a) If Martin has a mass of 45 kg and the coefficient of sliding friction between Martin and the banister is 0.20 , what is the force of friction impeding Martin's motion down the banister? b) If the banister is made steeper (inclined at a larger angle), will this have any effect on the force of friction? If so, what?
Answer: a. \qquad Answer: b. \qquad Forces 45
Exercise 10: As Alan is taking a shower, the soap falls out of the soap dish and Alan steps on it with a force of 500 N . If Alan slides forward and the frictional force between the soap and the tub is 50 N , what is the coefficient of friction between these two surfaces?
Answer: \qquad Exercise 11: Howard, the soda jerk at Bea's diner, slides a 0.60kg0.60-\mathrm{kg} root beer from the end of the counter to a thirsty customer. A force of friction of 1.2 N brings the drink to a stop right in front of the customer. a) What is the coefficient of sliding friction between the glass and the counter? b) If the glass encounters a sticky patch on the counter, will this spot have a higher or lower coefficient of friction?
Answer: a. \qquad Answer: b. \qquad 46 Forces

Studdy Solution
Skye must push with a force of **343 N** to move the dog at a constant speed.

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