A 20 kg box is resting on horizontal surface initially. Then a F = 50 N force pulls on the box by a cord at an angle of 20 degrees above horizontal. The kinetic frictional coefficient is 0.20. 1.What is the magnitude of acceleration of the box, a=? 2.What is the kinetic energy of the box after 3.0 seconds? (hint: calculate the velocity first v =?) 3.What is the work done by the force Fin 3.0 second? (hint: calculate the distance first, d = ?)

Q: A 65.0-kg file cabinet is sliding down a rough ramp for a distance of 5.00 m from rest as shown. The…

A:

Q: 1.The work done by the hand on the block is positive. is negative. is zero. has a sign which…

A: Given: block is moving on an inclined surface. inclination angle = θ direction of force = parallel…

Q: Egyptian laborers built the pyramids probably by dragging enormous stone blocks up ramps to elevate…

A: Given Mass     = 2000 kg   Angle =26° Friction = 0.4 Height  = 100 m

Q: FIGURE 1 shows a pulley apparatus used to lift up a 300 kg professional grand piano from the ground…

A: Free body diagram

Q: 900 N box is pushed up an inclined plane that is 6.0 m long. It requires 3900 J of work to get the…

A: kinetic energy at bottom= kinetic energy at top=0 as as bottom and top the speed is zero. potential…

Q: A 3.2 kg goose falls off the top of 10.0 m tall roof and hits the ground at 6.00 m/s. How much work…

A: Have a look dear

Q: 42. The work done when the point of application of the force F is given a displacement d is A dxF…

A:

Q: 1. How much work is done by a person pushing a box with a constant force of 300 N: a. if it is too…

A:

Q: A 65.0-kg file cabinet of is sliding down a rough ramp for a distance of 5.00 m as shown. The…

A: Given data:  Mass (m) = 65.0 kg Distance (d) = 5.00 m Frictional force (f) = 75.0 N g = 10.0 m/s2…

Q: A 8.09 kg box initially at rest on a horizontal surface is pushed by a constant force of 33.9 N that…

A: The free-body diagram of the box is shown below. Here, a is the acceleration, F is the applied…

Q: a. Discuss, with diagrams, the kinematics and dynamics of an object undergoing curvilinear motion. -…

A: An object is said to be in motion if its position changes with respect to time. When a particle is…

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

A:

Q: A 100 kg crate slides 10.0 m down a 40 degree incline. The coefficient of friction is 0.20. What is…

A:

Q: A 7.23 kg box initially at rest on a horizontal surface is pushed by a constant force of 34.5 N that…

A: Given that:-  Mass of the box=m=7.23 kg

Q: Work 2. An 8.0kg box slides down a surface that is inclined at 53° below the horizontal at a…

A:

Q: 2. A rollerskate is dragged across the ground for 3.4 meters, by someone pulling on its shoelace.…

A:

Q: 2) A 45.0 kg block is pushed by a force that forms an angle of 30º, as shown in the figure. the…

A:

Q: Josh pushes a 48.0-kg shopping cart with a force of 85.0 N in a direction 35.0° below the horizontal…

A: weight of cart w = 48kg applied force on cart F = 85N the applied direction θ = 35° distance moved…

Q: A 13000 N elevator is lifted with a force of 16000 N against 2000 N of friction a distance of 19…

A:

Q: 1 lige pulley going up polling down IN on is lifting a crate (mass = m) using a . The crate rises at…

A: Mass = m = 53 kg Distance = d = 2.7 m Work done by person = W = ?

Q: Determine whether the following statement is true or false and the reason your choice is correct. A…

A: Consider the variable x, where x=the length of the cable that has been pulled uptotal length of the…

Q: An assistant fills his cart with items to be stacked on the racks of a supermarket. The cart the…

A:

Q: A child sets a 2.5 kg block in motion by giving it a push along a floor. This gives the block a…

A: Given: The mass of the block is m=2.5 kg The initial velocity of the block is u=0 m/s The final…

Q: 1. A bungee cord exerts a non-linear elastic force of magnitude: F(x)=K₁X+K₂x³ where x is the…

A:

Q: A 240 kg cable that is 100 m long hangs vertically from the top of a tall building. a. How much work…

A:

Q: An elevator is lifted by its cables at a constant speed. Is the total work done on the elevator…

A: If the elevator lifted by cables on the elevator two forces are acting 1) gravitational force…

Q: A 20.0 kg box slides down a 12.0 m long incline at an angle of 30.0 degrees with the horizontal. A…

A: mass of box (m) = 20 kg length of incline (d) = 12 m θ = 30oforce applied to pull the box up the…

Q: What is the work done by the normal force FN ? A. F,dcos(30) B. F dcos(45) C. F dcos(60) D.…

A: Let FN denotes the work done by the normal force and d denotes the displacement of the block along…

Q: A 50 kg block is pulled up by a tensile force a 175 N and pushed up by a force F-200 N both applied…

A:

Q: Physics Problem A 300 N net force was applied 30° North of East on a crate with 50.0 kg mass, which…

A:

Q: A crate of 5 kg of mass is pulled by the effect of a force of 20 N, shown in the figure. The kinetic…

A: Given:- a mass of  the body = 5 kg           pulling force on the body =20N  acting on angle of 10°…

Q: A box is being pulled across a rough floor with a force P. What can you say about the work done by…

A:

Q: It takes 500 J of work to compress a spring 10 cm. What is the force constant of the spring?

A: Given that-Work done is 500 JCompression in the spring is 10 cmWork done by a force along the path…

Q: A girl on a skating board was going to her classroom. She stopped pushing with her foot when she's a…

A:

Q: A 290-kg piano slides 4.2 m down a 35˚ unloading ramp. A man is pushing back on the piano with the…

A: Given : Mass of piano = m= 290 kg   Force applied by the man = 820 N   To calculate ,  work of…

Q: A crate with mass m = 33.3 kg being pushed up an incline that makes an angle φ = 22.7 degrees with…

A: Free body diagram :

Q: It takes 500 J of work to compress a spring 10 cm. What is the force constant of the spring?

A:

Q: The figure here shows an overhead view of three horizontal forces acting on a cargo canister that…

A: Magnitude of forces are ,  Angles are   Displacement is Note:Find:The net work done due to all…

Q: A 20.0 kg box slides down a 12.0 m long incline at an angle of 30 degrees with the horizontal. A…

A:

Q: d) What is the applied force when the spring is compressed? e) What is the kinetic energy of the…

A:

Q: makes an angle of θ with the horizontal as shown. μk is the kinetic coefficient of friction and μs…

A: 1) when mgsinθ> fs the block will slide  ⇒  mgsinθ = μsmgcosθ⇒  tanθ      = μs⇒   θmin=tan-1μs

Q: A man pulls a 100 N box using a rope oriented at an angle of 30˚ with the horizontal force on a…

A: Given:Applied force on the box at agnle 30° is F=100 NFrictional force exerted by floor on box, f=8…