FR2: A cat climbs up the side of a tree, tilted at a 10 degree angle relative to the vertical (the cat is on the top side). The cat's claws dig into the tree bark, which pushes the cat up the tree. If the cat has a mass of 5 kg, how hard does it have to push into the tree in order to climb up at constant speed?

Q: We start with some review problems A crate of mass 34.7 kg rests on a level surface, with a…

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Q: A 2,006 kg truck drives along a circular path with a radius of 39.7 m with an acceleration of 3.1…

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Q: A crate of mass 30.7 kg rests on a level surface, with a coefficient of kinetic friction 0.119. You…

A: Mass of object is m=30.7 kg Coefficient of kinetic friction is μ=0.119 Applied force is F=320 N…

Q: A 10.0-kg box starts at rest and slides 3.5 m down a ramp inclined at an angle of 10 ° with the…

A: Given: The mass of the crate is m = 10 kg The ramp inclined at an angle is 100 The distance moved by…

Q: You place a crate of mass 36.2 kg on a frictionless 3.53-meter-long incline. You release the crate…

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Q: A 1500kg car is driving on the road at a speed of 15 m/s. The driver applies the brakes, bringing…

A: Given- Mass of car , m = 1500 kg Initial speed  of car, u = 15 m/s Final speed of car , v = 0 m/s…

Q: A5.0 kg wooden sled is launched up a 45° snow-covered slope( = 0.06) with an initial speed of 6.0…

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Q: What is the magnitude of the average drag force ?drag exerted on the car?

A: work done by non conservative forces = change in total energy work done by drag force = total final…

Q: You have been asked to design an escape ramp for trucks in a downhill 40 mph zone. Assuming a truck…

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Q: Which of the following statements is correct? (Select all that apply.)

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Q: A 300kg weight is held aloft by a rope that passes over a pulley and is then tied down. A 100 kg…

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Q: We start with some review problems A crate of mass 27.1 kg rests on a level surface, with a…

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Q: A car is moving along a flat, straight road when its driver pushes so hard on the brakes that the…

A: To solve this problem, we can use the principle of conservation of energy, which states that the…

Q: In the figure, the coefficient of kinetic friction between m1-2.00 kg and the table is u-0.200. The…

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Q: A 616-kg crate is placed on an adjustable inclined plane. As one end of the incline is raised, the…

A: Given data: Mass (m) = 616 kg Acceleration (a) = 0.19 m/s2 Inclined angle (θ) = 36° Acceleration due…

Q: A 5kg box rests on a flat, level floor. There is friction between this box and the floor with…

A: The maximum possible static friction between the box-floor surface is given by: fs=μsN. This is the…

Q: marble rolls off the roof of Physics hall and falls vertically. Just before it reaches the ground,…

A: Given  Initial velocity u = 0  Final velocity v = 15 m /s  Height h = ?

Q: A stone is thrown straight upward with a speed of 25 m/s. It is caught on its way down at a point 5…

A: The vertical displacement of stone is   y=y_0+v_0t-(1/2)gt^2  5=25t-(1/2)(9.80)t^2 5=25t-4.90t^2 On…

Q: Consider an object sliding down a frictionless ramp that is inclined an angle above the horizontal.…

A: Consider the free-body diagram of the system as shown below and resolving the forces into horizontal…

Q: 2. A 5.00-kg rock piece is released from rest at the top of a 2.50-m-long ramp, reaching a speed of…

A: Given:-  The mass of the  rock is m = 5.0 kg  The length of the inclined plane is L =2.50 m  The…

Q: A 12 N bag is hanging with a cord. How much is the least tension exerted by the cord to stay the bag…

A: Given,  mg = 12 N We need to calculate,  Required least tension =?

Q: What is the spring constant of a spring that stretches 2 cm when a mass of 0.6 kg is suspended from…

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Q: You are standing on a scale in an elevator. While the elevator is at rest, the scale reads 650 N.…

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Q: In the figure, two blocks are connected over a pulley. The mass of block A is 14.0 kg and the…

A: It is given that, mass of block A, mA=14 kgco-efficient of kinetic friction, μk=0.300incline angle,…

Q: Q3. If the 75-kg crate as shown in the figure Q3 starts from rest at A, determine its speed when it…

A: There is no frictional force acting on the system.

Q: A monkey of mass 20 kg is holding a vertical rope. The rope will not break when a mass of 25 kg is…

A: Given, A monkey of mass 20 kg is holding a verticle rope. m = 20 kg The rope will break if the mass…

Q: You are standing on your balcony in an apartment building. You tossed a coin straight upwards at 4…

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Q: We start with some review problems A crate of mass 38.7 kg rests on a level surface, with a…

A: Draw the free-body diagram of the crate.

Q: A student with a mass of 68 kg gets on a ferris wheel that rotates at a constant speed. When the…

A: Since, student is in circular motion so, he need a centripetal force which is always towards the…

Q: To throw a baseball, the pitcher winds up, starting the ball from rest. They then accelerate the…

A: Given data:  Initial velocity (u) = 0 m/s Displacement (d) = 3.4 m Final velocity (v) = 46 m/s…

Q: A penguin slides at a constant velocity of 2.54 m/s down an icy incline. The incline slopes above…

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Q: The coefficient of static friction between a sled and the snow is 0.3, with a coefficient of kinetic…

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Q: In the figure below, mA > mB and the table surface is frictionless. If the system is released from…

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Q: 20 m Your Answer: 15 m Rough A 15.0 kg stone slides down a snow-covered hill shown in the figure,…

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Q: 4. A roller coaster reaches the top of the steepest hill with a speed of 6.40 km/h. It then descends…

A: Given that:- Speed of roller coaster at the top hill=u=6.4km/hr

Q: An elevator technician weighs 160 lbs in an elevator which is at rest. When the elevator moves up at…

A: The rest weight of the technician is given as, W=N=160 lbs, The weight of the technician with…

Q: You place a crate of mass 38.8 kg on a frictionless 2.20-meter-long incline. You release the crate…

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Q: We start with some review problems A crate of mass 27.1 kg rests on a level surface, with a…

A: Given Data : The mass of the crate is given as m = 27.1 Kg. The force applied to the crate is given…

Q: with d = 2.90 m. The block starts at x = 0, and is given a push to the left with an initial speed of…

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Q: A wet bar of soap slides down a ramp 10.0 m long inclined at 11.73°. What would be its acceleration?…

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Q: A small glider is coasting horizontally when suddenly a very heavy piece of cargo falls out of the…

A: The glider, along with the cargo, are both moving initially horizontally. So their initial vertical…

Q: A tourist looks up at a tall obelisk and desires to determine the height of this object. He…

A: Please see the attached image for the solution. If there are queries or if the image is not loading,…

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.