A block is projected with speed v across a horizontal surface and slides to a stop due to friction. The same block is then projected with the same speed v up an incline where is slides to a stop due to friction. In which case did the total mechanical energy of the block decrease the least?

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…

Q: The figure shows the top view of an object mass m moving on a uniformly fought horizontal surface.…

A: Given data: Mass of the object, m=7.15 kg Coefficient of friction, μ=0.644 Radius of the trajectory,…

Q: Consider a block on a level track attached to a mass hanging from a pulley. If the track is not…

A: The work done by the friction on the moving block along the track is, Wf=Ffd=μNd=μm1gd

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A: The work done by the applied force is given by the formula:Here, is the applied force, is the…

Q: A 4.8 kg body is at rest on a frictionless horizontal air track when a constant horizontal force F…

A: We will answer this question using kinematic equation of motion, Newton's equation of motion and…

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A:

Q: A slingshot consists of a light leather cup containing a stone. The cup is pulled back against two…

A: Given data: Force, F=15 N Stretch, x=-1.0 cm=-0.01 m Mass of stone, m=58 g=58×10-3kg x'=-0.21 m

Q: Consider a roller coaster that moves along the track shown in the figure below. Assume all friction…

A: Step 1: Step 2: Step 3: Step 4:

Q: A rope is used to pull a 2.22 kg block at constant speed 3.40m along a horizontal floor. The force…

A: mass of block (m) = 2.22 kg distance moved (d) = 3.40 m along a horizontal floor Force (F) = 7.35 N…

Q: A rope is used to pull a 3.98 kg block at constant speed 6.99 m along a horizontal floor. The force…

A: Have a look dear

Q: Consider a roller coaster that moves along the track shown in the figure below. Assume all friction…

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Q: In the figure, a block of mass m = 2.3 kg slides head on into a spring of spring constant k = 380…

A:

Q: determine the final speed of the box (in m/s) after sliding across the rough section of fl

A: Decrease in kinetic energy is equal to the work done by friction. Ki-Kf=Wf Here Ki is the initial…

Q: A 2.68 kg mass is initially at rest upon a horizontal surface. It is then acted an applied force.…

A: Using work energy theorem  Wnet=change in kinetic energy.

Q: A 0.500-kg particle has a speed of 1.40 m/s at point circled A and kinetic energy of 7.60 J at point…

A:

Q: (a) At a certain instant, a particle-like object is acted on by a force F = (2.60 N) – (3.70 N) +…

A: The instantaneous rate at which the force does work on the object can be calculated using the dot…

Q: In the figure, a block of mass m = 3.90 kg slides head on into a spring of spring constant k = 320…

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Q: What is true about the mechanical energy of a system?

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A: Given   mass of the body m=4.8kg  initial speed of the body u=0m/s

Q: oblem 2. A 4.0 kg object moving with an initial velocity of 8.0 m/s on a horizontal surface comes to…

A: Given that                    The mass of the object is (m) = 4.0kg                    The initial…

Q: A 88 kg block is pulled at a constant speed of 3.5 m/s across a horizontal floor by an applied force…

A: Given data: Mass (m) = 88 kg Constant Speed (v) = 3.5 m/s Force (F) = 139 N Angle between force and…

Q: A horizontal force of magnitude 48.3 N pushes a block of mass 3.75 kg across a floor where the…

A:

Q: A rope is used to pull a 5.92 kg block at constant speed 5.92 m along a horizontal floor. The force…

A: Force on the block,

Q: A horizontal force of magnitude 47.6 N pushes a block of mass 3.58 kg across a floor where the…

A:

Q: A box of unknown mass is sliding with an initial speed vi = 6.00 m/s across a horizontal…

A: GIVEN         Intial velocity of box =vi= 6.0m/s        length of Rough section of floor=d=2.8m…

Q: the coefficient of kinetic friction between the block and floor?

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Q: In the figure, a block of mass m = 4.00 kg slides head on into a spring of spring constant k = 230…

A:

Q: A roller-coaster car of mass 1.50 × 103 kg is initially at the top of a rise at point Ⓐ. It then…

A: Given,

Q: true or false?  When an object slides across a surface and comes to a stop, the amount of energy…

A:

Q: Same set-up for the conservation of energy was performed. The 5-g marble covered a horizontal…

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Q: A box of 9kg is released from rest on a rough inclined plane and slides to the bottom. The plane is…

A:

Q: A horizontal force of magnitude 41.3 N pushes a block of mass 3.92 kg across a floor where the…

A:

Q: 5.8 kg body is at rest on a frictionless horizontal air track when a constant horizontal force F…

A: From the given image, We see that the interval between the marks is 0.2 m and it is divided in 5…

Q: A 3 kg block is sliding across a horizontal surface.  The initial speed of the block is 4 m/s, but…

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Q: A cat's crinkle ball toy of mass 15 g is thrown straight up with an initial speed of 3 m/s. Assume…

A: Kinetic energy is the energy acquired by an object due to its motion. It depends on the velocity by…

Q: A horizontal force of magnitude 40.1 N pushes a block of mass 3.85 kg across a floor where the…

A: