21. A 2-kg object is being pushed by a horizontal force F along a horizontal frictionless air-table. The object starts from rest at x 0 and the force F acting on it changes according to the force F v.s. position x graph. Find the work done by the force F on the object as the object moves from x-0 to x-9 m. 黑 FIN) X(m) 9. a. 48 J b. 36 J c. 72 J d. 24 J

Q: A person pushes horizontally on a heavy box and slides it across the level floor at constant…

A:

Q: A constant external force P = 310 N is applied at an angle 30° below the horizontal to a 20 kg box,…

A:

Q: A 5 kg book is held 10 meters above the floor. How much gravitational potential energy does it have?…

A: Mass(m) = 5 kg Height(h) = 10 m Potential energy (E) = mgh g = gravitational acceleration g = 9.8…

Q: A 2.00-kg (20.0-N) stone is dropped from a height of 5.0 m, and strikes the ground with a velocity…

A: Given data: Mass, m=2 kg Height, h=5 m Velocity, v=8 m/s Question is to find the work done by the…

Q: 2. The graph shows the x component of the net force on an object versus position. Find the work done…

A: Note: As per the guidelines, we can attempt only the 1st three sub-parts The work done is given as,…

Q: A 2.56 kg cart moving along a horizontal track in the positive x direction has a changing force…

A:

Q: 4. A 250-N force accelerates a 25.0-kg crate from rest along a horizontal frictionless surface for a…

A:

Q: 2. A 10-kg mass is dragged on a horizontal frictionless surface by a force F(x) = 2x + 1 (N) that…

A:

Q: a 12 kg box is pushed 3.45 m across the floor by a horizontal force. The coeffcients of static and…

A: Given: mass of box, m = 12 kg  coefficient of kinetic friction, μk = 0.444 coefficient of static…

Q: A force F=(4xi +3y N acts on an object as it moves in the x direction from the origin to x= 4m. The…

A: Given data The force equation is given as F→=4xi^+3yj^ N. The object moves from origin to x = 4 m.…

Q: A 2.00-kg (20.0-N) stone is dropped from a height of 5.0 m, and strikes the ground with a velocity…

A: Weight of stone (w) = 20 N Mass of stone (m) = 2 kg Initial height (h) = 5 m Velocity with which the…

Q: 13. Through what vertical distance does the block rise as it slides up to its highest point on the…

A: Given: Mass,m=500g=500×10-3kgAcceleration due to gravity,g=9.8m/s2Coefficient of kinetic…

Q: 1. A constant force of 1200 N is applied to a 150-kg block along a rough horizontal surface at an…

A: See below

Q: worker applies a force of 190 N, directed 22° below the horizontal. As the crate moves 3.3 m, How…

A: Given :-  F = 190 N  S = 3.3 m m = 52 kg  directed 22° below the horizontal

Q: 1. A 58 N block is being pushed up on a plane inclined at an angle of 38⁰ with the horizontal by a…

A: Disclaimer: “Since you have asked posted a question with multiple sub-parts, we will solve the first…

Q: A worker pushes a wheelbarrow 5.0 m along a level surface, exerting a constant horizontal force of…

A: Given:  force applied by the worker (F) = 50 N  distance travelled by the wheelbarrow (S)  = 5 m the…

Q: A force is acting on a 2.00 kg particle whose position changes with time as x = 4.0 t - (1/3) tº,…

A: Mass of particle is m=2 kg Position of particle as a function of time is xt=4t2-1/3t3; here x is in…

Q: A particle experiences a variable force F= (2+2x+ x^2)N that acts in the x direction. The work done…

A:

Q: A metalsmith at a foundry drags a hunk of steel across the horizontal foundry floor by pulling on it…

A:

Q: An object whose mass is 2.00 kg is lifted upward a distance of 3.55 m against the pull of gravity on…

A: Given: The mass of the object is 2 kg. The height of the object is 3.55 m. The acceleration due to…

Q: A 5.0-kg block that initially has a speed of 6.0 m/s is moving in a straight line on a level surface…

A: Concept Work done by all forces is equal to change in kinetic energy Since only frictional force is…

Q: 2. A 1050 J of work is done by a post-person when pushing a parcel with a mass of 33.2 kg with a…

A:

Q: 4. A boy carries a load of 500 N to a distance of 100 m. The work done by him is? a. 5 N b. 50,000…

A: Question 4 :- Force F = 500 N Displacement d = 100 m Angle between force  (acting vertically…

Q: 39 A 1.00 kg block slides down a 20.0 meter ramp at a constant velocity. The angle of inclination of…

A: GIVEN             A) Mass of block =m = 1 kg                 length till slide =S = 20m…

Q: A 60-N constant force exerted on a 10-kg object for 12 seconds. The initial velocity of an object is…

A: (a) Calculate the acceleration of the object due to the applied force. a=Fm=60 N×1 kg·m/s21 N10 kg=6…

Q: A force, in an angle of 32º, is applied to a 28-kg object which caused it to accelerate at 12 m/s2.…

A:

Q: The figure shows a block of mass 10 Kg. Determine what work will be done by the force F that will…

A:

Q: 1. A box of mass M½, initially at rest, is acted on by a single position and time-dependent force…

A: Given: The time-dependent force is given as

Q: A 2500 kg car accelerates from rest to a velocity of 30.0 m/s in 8.00 seconds. The work done by the…

A:

Q: Assume that an object is being pulled along the ground by a 75 N force directed 28° above the…

A:

Q: 4. A 2.5 kg object falls vertically downward in a viscous medium at a constant speed of 2.5m/s. How…

A: 4) Given,Mass of object, m = 2.5 kgConstant speed in downward direction = velocity = 2.5 m/sHeight,…

Q: a. Determine the work a hiker must do on a 15 kg backpack to carry it up a hill of height h = 14 m;…

A: Mass of the backpack m=15 kg, height of the hill h=14 m and acceleration due to gravity. Let us take…