A block placed on a horizontal surface is being pushed by a force F making an angle 0 with the vertical. If the friction coefficient is u, how much force is needed to get the block just started. Discuss the situation when tane < H.

Q: Starting from rest, a 5.0kg block slides down a frictionless ramp that is inclined 30 degrees with…

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Q: A 4.4-kg block is pushed 3.5 m up a vertical wall with constant speed by a constant force of…

A: Given information:Mass of the block (m) = 4.4 kgCoefficient of friction between the block and the…

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Q: An 8.0 kg sled is initially at rest on a horizontal road. The coefficient of kinetic friction…

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Q: (a) Calculate the force needed to bring a 900 kg car to rest from a speed of 80.0 km/h in a distance…

A: Given: The mass of the car is 900 kg. The speed of the car is 80 kmh=22.22 m/s. The distance covered…

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Q: of work. Assuming that you weigh 800 N, how high could the engine lift you?

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Q: A sled of mass m is being pulled horizontally by a constant upward force of magnitude F that makes…

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Q: A power specification formula is to be derived for electric motors which drive conveyor belts moving…

A: The mass flow rate (m) can be converted to its value (say m1) in the SI unit (kg/s) as follows:

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Q: A buffalo is capable of producing 250 watts of power. If it pulls a plow with a 50-kg force,…

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Q: A sled of mass m is being pulled horizontally by a constant horizontal force of magnitude F. The…

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Q: For the physical situation described below, identify the letter of the appropriate work-energy bar…

A: Given :     Initial velocity of the sledder, u = 0 m/s (the sledder is at rest)     Finial velocity…

Q: A body (mass m) is driven along a rough horizontal path (kinetic friction coefficient u) by a…

A: (a) A periodic force is acting on a body of mass m. Net force acting on the block is given as,…

Q: The ultralight plane Gossamer Condor in 1977 was the fi rstto complete the Kremer Prize fi…

A: Given: Mass of the wing = 95 Kg Width of the wingspan = 29 m Power delivered = 1/4 Hp

Q: A 19.8 kg block is dragged over a rough, horizontal surface by a constant force of 183 N acting at…

A: Work done by the frictional force is,

Q: A body of mass m falls down through a height h. Obtain an expression for the work done by the force…

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Q: Ex 12 : Calculate the work done in blowing a soap bubble of radius 0.5 cm. Surface tension of soap…

A: Radius of soap bubble r = 0.5 cm = 0.005 m Surface tension of soap solution is T = 2.5 × 10- 3 N/m

Q: The Outlaw Run roller coaster in Branson, Missouri, features atrack that is inclined at 81° below…

A: Given,

Q: (a) A child slides down a water slide at an amusement park from an initial height h. The slide can…

A: Given, A child is sliding on a water slide

Q: (a) Calculate the force needed to bring a 850 kg car to rest from a speed of 95.0 km/h in a distance…

A: Force is an acceleration mass multiply by the mass of the object.    Apply the equations of motion…

Q: A weight W is accelerated from rest by a constant force, G, through a distance d across the…

A: Given:- weight of the object W  Force G is applied at the distance d  After d distance floor with a…

Q: A box is given a push across a horizontal surface. The box has a mass m, the push gives it an…

A: Given value--- initial speed ( u ) = vi . coefficient of kinetic friction = muk . final speed ( v )…

Q: (a) Calculate the force needed to bring a 1050 kg car to rest from a speed of 80.0 km/h in a…

A: a)The required force from work energy theorem,

Q: Calculate the force needed to bring a 950 kg car to rest from a speed of 95.0 km/h in a distance of…

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Q: (a) Calculate the work done (in J) on a 1200 kg elevator car by its cable to lift it 38.0 m at…

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Q: A box of weight w = 2.0N accelerates down a rough plane that is inclined at an angle ϕ=30 degrees…

A: weight (w)= mg = 2 N ϕ = 30oNormal force (N) = 1.7 N Coefficient of kinetic friction =…

Q: A 5.0 kg block is projected at 5.0 m/s up a plane that is inclined at 30 with the horizontal. How…

A: Mass of the block,   The initial speed of the block,   Angle between the plane and the horizontal,

Q: (a) Calculate the force needed to bring a 800 kg car to rest from a speed of 80.0 km/h in a distance…

A: mass = 800 kg u = 0 m/s (final speed)initial speed = 80km/h  = 80 * 5/18  = 22.22 m/sd = 115 m

Q: m h2 h1

A: mass of block (m) = 10 kg Distance along the flat muddy section (d) = 1 m coefficient of kinetic…

Q: Find the mass (in kg) of the black that a 40HP engine can pull along a level road at 15m/s if the…

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Q: poamany A tank in the shape of an inverted right circular cone has height 6 meters and radius 4…

A: The work(W) required to empty the tank by pumping the hot chocolate over the top of the tank. given,…

Q: A horizontal f orce of 140 Newton is needed to pull a 60.0 kilogram box across a horizontal floor at…

A: Given,Mass of the box, m = 60.0 kgHorizontla Force, F = 140 Nbox is moving with constant speed.

Q: A chain with length b and mass M is hang on ceiling under constant gravity g. Find the tension at…

A: The objective of the question is to find the tension at point 'A' in two different cases: when the…

Q: A box of mass m = 9.3 kg is released from rest at the top of a track that is frictionless except for…

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Q: 3. A spring has a resting length of 10 cm. A 40 N force is required to stretch the spring to a…

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Q: A car is traveling on a level road with speed v0 at the instant when the brakes lock, so that the…

A: Solution: Let the stopping distance be "d", the work done by the frictional force is calculated as…