An elevator of mass 500 kg descends with an acceleration of 2 m/s^2 for a distance of 12 metres. What is the work done by the force of the earth's acceleration? -Elevator cable Cab K
Q: "If someone pulls a crate up a rough, inclined plane at constant speed, which one of the following…
A: According to the work energy theorem, the work done by all the forces is equal to the change in the…
Q: a block with mass m=20 kg pulled on horizontal surface , bulled by external force by 1000 N as shown…
A: Frictional force=μmg where μ=coefficient of friction m=mass of body Work done by force=F.X where…
Q: If the total mass of the sled and the girl is 25 kg in the coefficient of kinetic friction between…
A:
Q: A 1.5 kg hockey puck initially moving at 4.9 m/s slides 12 m along the ice before coming to rest.…
A:
Q: Give an example of a frictional force doing positive work
A: Frictional force: This force is act between two rough surface while movement. The frictional force…
Q: Calculate the work done on a 1500-kg elevator car by its cable to lift it 40.0 m at constant speed,…
A: Using Newton's second law, ΣFy=Fcable-mg-Fs=may=0Fcable-mg-Fs=0Fcable=mg+Fs
Q: An coin is dropped vertically from the water surface in a swimming pool, water drag force is non…
A: This can be done using the concept of work done W=
Q: A 15 kg box is being pushed 4.0 m along a rough horizontal surface at a constant velocity by a…
A: Given: The mass of the box: m=15 kg Distance moved: D=4.0 m Applied force: Force: F=25 N
Q: 2.50 kg is pushed d = 2.30 m along a frictionless horizontal table by a constant applied force of…
A: mass of object m = 2.50 kg Distance block pushed…
Q: The brakes of a truck cause it to slow down by applying a retarding force of 3190 N to the truck…
A: Write the expression for the work done. Here, F is the force, d is the distance, and θ is the angle…
Q: two masses, M and 3M, are connected by a lightweight string which passes over an ideal pulley. the…
A: We are given the 2 masses. One is on horizontal surface and other is hanging vertically. We draw…
Q: How much work W is done by the force to move the object from x=2 m to xy=7 m? F. (N) 6 0 2 4 6 8 10…
A: Given :- Graph between force and distance.
Q: which of the following is negative work being done? Question 10 options: A man pushes with a…
A: Correct option is (c) An object is pushed with a force of 25 N when the frictional force is a…
Q: A man pushes a block of mass M along a frictionles ramp at constant speed to a heighth as shown in…
A:
Q: A cable pulls an 382 kg safe up a slope inclined at 10°, for 31 m on an very slippery oily surface.…
A:
Q: thou a displa Is pusned norizontal Newtons. Non-conservative forces (friction) remove 14 Joule stem.…
A: Given values:- Displacement,(d)=3 m -----(1) Force,(F)=89 N -----(2) Non-conservative forces work…
Q: Is work done whenever a force is exerted? Explain.
A: Force F is applied to body to displace it from one position to another position, then work done on a…
Q: F(N) 3 X(m 4 9. -2 A particle of mass (2kg) is subject to a force (F) that varies with position as…
A: work done =14J
Q: A box is pushed horizontally though a displacement of 4.4 metres by a force of 61 Newtons.…
A:
Q: The figure below shows a person lifting a box with a mass of 18.9 kg a height of 1.4 m and moving it…
A: First, the person lifts the box up to a height of 1.4 mAnd then moves the box to a distance of 5 m…
Q: A 2 kg block is pulled 4.0 m along the horizontal ground by a force of 25 N that makes an angle of =…
A:
Q: Bruce Springsteen is leaving the United States. He applies a constant force of 20 N to his suitcase…
A: Given: The applied force is 20 N 25o above the horizontal. The mass of the suitcase is 8 kg. The…
Q: A crane pulls up a car weighing 500kg to a vertical height of 4m. Calculate the work done by the…
A: Work is Calculated by: Work = Force x Displacement Work = mgH ......(1) ( Here H…
Q: ning a floor pulls a vacuum cleaner with a force of magnitude 60 N at an angle 45° with horizontal.…
A: Given values:- FOrce,(F)=60 N -----(1) Angle,(θ)=450 -----(2) Vaccum cleaner displaced,(d)=5 m…
Q: An object is constrained to move along the +y- axis at a constant speed when a variable force begins…
A: Given data: The graph between y-component of the force and displacement in y-direction Required:…
Q: A mother carries a 15 kg child up the stairs to bed. If the stairs have a vertical height of 3.2 m,…
A: The work done by the gravity on the child can be given as
Q: a crate with a mass of 155 kg starting from rest, slides down a ramp making an angle 32 degrees with…
A: Given data: Mass of the crate m=155 kg Angle θ=32° length of the ramp l=6m Frictional force F =200N
Q: To push a crate of mass 70 kg up a frictionless ramp with an angle of 25 ° to the horizontal, a…
A: Given: Mass of the crate, M=70 kg Angle of the ramp, θ=25° Force exerted by the worker, F=900 N…
Q: The propellers of a drone require a force of 70 N to lift, at constant speed, a parcel from the…
A: thank you
Q: A cable pulls an 201 kg safe up a slope inclined at 24, for 12 m on an very slippery oily surface.…
A: Given information: Here, θ is the inclined angle, m is the mass of the safe and s is the distance…
Q: A book is moved on a rough wooden table from position A to position B. What is TRUE about the work…
A: Since, the work done by friction depends on the path taken and also the nature of work done by…
Q: A 50 kg box is pushed 7 m across the floor at constant velocity by a force F= 500 N directed 53…
A: Simple and intersting problem from basic physics. Please have a good look
Q: A 4.20-kg box has an acceleration of 2.10 m/s2 when it is pulled by a horizontal force across a…
A:
Q: A 2 kg rock is thrown upward, with a speed of 5 m/s and returns to the same spot, with the same…
A: Give Mass m = 2 kg Initial velocity is U = 5 m/s in upward direction. Final velocity is V = 5 m/s…
Q: Identify a case where an object is moving over a surface with friction, but the frictional force…
A: When the object moves in a pure rolling motion, the work done by the friction will be zero.
Q: A man cleaning a floor pulls a vacuum cleaner with a force of magnitude 60 N at an angle 45° with…
A: Work done: A force exerted on the body and total displacement of the body gives work done. Work is…
Q: work is being done when an object is displaced in the same direction as the force applied. -…
A:
Q: a child pulls a box of 6kg a distance of 10 meters along a rough horizontal surface with a…
A:
Q: 1. In the figure the mass of the box is 0.15 kg. It slides down the track from point A and reaches…
A: We use the work-energy theorem to calculate the coefficient of friction.
Q: After being pushed (no matter what force) an object with mass 100 kg covers a distance of 15 m…
A: Given data *The mass of an object is m = 100 kg *The given distance is s = 15 m *The given…
Q: A sled plus passenger with total mass 50 kg is pulled 20 m across the snow (uk = 0.20) at constant…
A:
Q: A ball tied to a string is being whirled around in a circle. What can you say about the work done by…
A: A ball tied to a string is being whirled around in a circle.
Q: A 5-kg block slides a distance d = 6 m down a rough incline as in the figure with 0 = 49° and v₁ =…
A:
Q: A cable “lowers” a 3000 kg elevator at a constant velocity for a distance of 35.0 m What is the work…
A:
Step by step
Solved in 2 steps