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Questions tagged 'Friction'

11 questions

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Anonymous

Feb 06, 2025

How much friction force must the brake apply to the rim to bring the disk to a halt in 2.30s ?

How much frictional force must the brake apply to the rim to bring the disk to a complete stop in 2.30 seconds? The disk has a mass of 3.10 kg and a diameter of 31.0 cm, and it is initially spinning a...

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Anonymous

Jan 15, 2025

How do you do this work and energy problem? physics urgent help!?

A 4.5 kg box slides down a 4.4 m high frictionless hill, starting from rest. It then travels across a 2.4 m wide horizontal surface before hitting a horizontal spring with a spring constant of 500 N/m...

Two boxes of fruit on a frictionless horizontal surface are connected by a light string as in the figure below, where m1 = 16 kg and m2 = 28?

Two boxes of fruit are placed on a frictionless horizontal surface and connected by a light string, as shown in the figure (link: https://www.webassign.net/sercp9/4-p-069-alt.gif). The masses of the b...

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Anonymous

Dec 18, 2024

A student slides a 0.75 kg textbook across a table, and it comes to rest after traveling 1.2m.

A student slides a 0.75 kg textbook across a table, and it comes to rest after traveling a distance of 1.2 meters. Given that the coefficient of kinetic friction between the book and the table is 0.34...

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Anonymous

Dec 16, 2024

A hollow, spherical shell with mass 2.00 kg rolls without slipping down a 38.0o slope.?

A hollow, spherical shell with a mass of 2.00 kg rolls without slipping down a slope inclined at 38.0 degrees. a) Calculate the acceleration of the shell, the frictional force acting on it, and the m...

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Randi Robel

Nov 27, 2024

Solve numerically for the magnitude of the force Fm in Newtons.

A box with a mass of ( m = 2.5 \, \text{kg} ) rests on top of a table. The coefficient of static friction between the box and the table is ( \mu_s = 0.61 ), while the coefficient of kinetic friction i...

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Anonymous

Nov 26, 2024

First Year Physics Help…?

Sam, who has a mass of 75 kg, accelerates across a level snow surface using his jet-powered skis. The skis generate a thrust of 197 N, and the coefficient of kinetic friction between the skis and the...

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Anonymous

Nov 26, 2024

Physics question, help please….?

A block with a mass of 0.5 kg is pressed against a horizontal spring with negligible mass, compressing the spring by a distance of 0.2 m. When the spring is released, the block travels across a horizo...

multiple choice question plz help!!Identify all forces acting on the object.?

Identify all the forces acting on the object in the following scenario: An ice hockey puck glides across a surface of frictionless ice. Which of the following accurately describes the forces acting on...

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Anonymous

Oct 24, 2024

What is the minimum angular speed, in rpm, for which the ride is safe?

In an old-fashioned amusement park ride, passengers stand inside a 5.5-meter diameter hollow steel cylinder with their backs against the wall. The cylinder begins to rotate about a vertical axis, and...