A small box is held in place against a rough vertical wall by someone pushing on it with a force directed upward at 26 ∘∘above the horizontal. The coefficients of static and kinetic friction between the box and wall are 0.40 and 0.30, respectively. The box slides down unless the applied force has magnitude 29 N . What is the mass of the box?

Q: Three identical blocks connected by ideal (massless) strings are being pulled along a horizontal…

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Q: You are working for a shipping company. Your job is to stand at the bottom of an 8.0-m-long ramp…

A: Given data: The coefficient of kinetic friction is μk=0..30 The length is l = 8.0 m long

Q: Two boxes (m = 0.500 kg and M = 1.00 kg) are sliding down a rough incline. The coefficient of…

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Q: You managed to pull a heavy crate up a ramp on a truck. The crate has mass 48 kg. You were pulling…

A: Given data:  Mass of crate (m) = 48 kg Applied force (FA ) = 464 N Inclined angle (θ) = 29.5°…

Q: A 50.0 kg box is being pushed along a horizontal surface by a force of 200.0 N directed 30° below…

A: Applied force = =200 N Normal force exerted by surface on the box = weight + F sin(theta)  = mg + F…

Q: A 60.0-kg mass person wishes to push a 120-kg mass box across a level floor.  The coefficient of…

A: Given: Mass of person, m1 = 60 kgMass of the box, m2 = 120 kgThe coefficient of static friction…

Q: A large crate is at rest on a horizontal floor. The coefficient of static friction between the crate…

A: It is given that the coefficient of friction is, μs=0.400 here, θ=30° and the F=380 N. It is…

Q: A 100kg table sits on a horizontal floor. The coefficient of static friction between the table and…

A: Given :  Mass of table, M =  100 kg  Mass of box, m = 20 kg  Coefficient of static friction, u = 0.4…

Q: A desperate hiker has to think fast to help his friend who has fallen below him. Quickly, he ties a…

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Q: A 200 kg crate rests on a floor with carpet. A tired worker pushes with a horizontal force of 600 N…

A: Given: The mass of the crate is, M=200 kg The worker pushes with a horizontal force, F=600 NF = 600…

Q: A heavy crate is suspended from two ropes as it is lowered from a high shelf to the floor at a…

A: SOlution: Given that T = 950 N angle1 = 28.2 degrees angle2 = 33.7 degrees

Q: A block with a mass of 4.83 kg is at rest on an inclined surface. The surface makes an angle of…

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Q: Tim got a huge birthday gift from his grandmother. A 400. N crate has been delivered to his…

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Q: Suppose a 25.0 kg block rests on a horizontal plane, and the static friction coefficient between the…

A: The maximum static frictional force can be obtained as fs≤μsNfs≤μsmg≤0.22025.0kg9.80m/s2≤53.9 N

Q: A 235 N crate rests on a ramp; the maximum angle just before it slips is 27.8° with the horizontal.…

A: Given: The weight of the object is 235 N. The maximum angle of inclination is 27.8o  The free-body…

Q: A 423 N crate rests on a ramp; the maximum angle just before it slips is 26.4° with the horizontal.…

A:

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: