What is the minimum coefficient of static friction needed

Assignment Help Physics

Reference no: EM131002915

A man wants to push a package of shingles of total mass 36 kg up a roof being built at an angle of 35^o to the horizontal. The coefficient of kinetic friction between the package and the roofing paper already in place is 0.30.

(a) How much force does the man have to exert on the package directly along the slope of the roof to cause the package to accelerate at 0.1 m/s2?

(b) What is the minimum coefficient of static friction needed so that the package will not slide when it is left at rest on the roof?

Reference no: EM131002915

Questions Cloud

Company production and operational costs : The company currently sells 25,000 tons of aggregate for total revenue of $5,080,000. Other data related to the company's production and operational costs follow:

What is his initial rotational kinetic energy : A man stands on a frictionless platform rotating with an initial angular velocity 4.0 rev/min. His arms are out and his rotational inertia is 5.00kg*m2. He pulls in his arms reducing hos rotational inertia to 3.00kg*m^2, what is the initial angular..

Define the restriction : Let T : V → W be a surjective linear map. For a subspace U ⊆ V, define the restriction T|u ∈ L (U, W) by T|u (u) = T (u) . Prove that there exists a subspace U of V such that T|u is an isomorphism.

What is the main idea of the poem : What difficult, special, unusual words does the poem contain?

What is the minimum coefficient of static friction needed : A man wants to push a package of shingles of total mass 36 kg up a roof being built at an angle of 35o to the horizontal. The coefficient of kinetic friction between the package and the roofing paper already in place is 0.30. How much force does the ..

What two types of love does the author differentiate : In "Love, Arranged Marriage and the Indian Social Structure" what two types of love does the author differentiate

How does sex change you life and behavior : Explore YOUR sexuality through aim and object in this paper. Self-reflaction, how does sex( Gender) change you life, behavior while you growthing up.

Company sent a bereavement arrangement : Message for Analysis, 8-C, you should see that this is a positive message. The good news should come first, with accurate money details. This is one of the times in business when the good news far outweighs the reason for the refund. Especiall..

What average torque does the disk drive supply to the disk : Many 2.5-in-diameter (6.35 cm) disks spin at a constant 7200 rpm operating speed. The disks have a mass of about 7.5 g and are essentially uniform throughout with a very small hole at the center. If they reach their operating speed 2 s after being..

User Account

All Pages