A 21-kg child starts from rest and slides down a slide that is 3.9 m high. At the bottom of the slide, the child is moving 1.28 m/s. m = 21 kgh = 3.9 mv = 1.28 m/s   How much work was done by the nonconservitive force of friction on the child? W=

Q: A student whose mass is 55 kg climbs stairs from the fırst to the third floor of the physics…

A: mass of student (m) = 55 kg vertical distance (h) = 10 m

Q: 6. The kinetic energy of a car is 8 × 106 J as it travels along a horizontal road. How much work is…

A: According to work-energy theorem, Here, KEi and KEf represent the initial and the final kinetic…

Q: How much work do the breaks on a 3200 kg car need to do in order to slow it from 30 m/s to 20 m/s?

A: Given mass m=3200Kg V1=30m/s V2 = 20m/s According to work energy theorem work done by the car is…

Q: 13) A worker pushes a wheelbarrow with a horizontal force of 50 N on level ground over a distance of…

A: We know that  W=F.s=Fs cos(theta)

Q: A force of F = 1.12 x 104 Newtons does work of W = 1.18 x 10° Joules. What is = Work Force)? the…

A:

Q: 6. A child does 350 J of work to lift a box from the ground up to his tree house at a steady speed.…

A:

Q: particle is subject to a force that varies with positio V as shown in Figure P7.9. Find the work…

A:

Q: A7.3 kg raccoon climbs a 6.9 m tall tree in 22.5 s, how much work does the raccoon do

A: given mass of raccoon m = 7.3 kg height to climb h = 6.9 m time taken t= 22.5 s work done W = mgh…

Q: A box is pushed with the force of 15N. The box travels 2 meters. What is the total work? *   a. 0 J…

A:

Q: In the plot shown of force vs. distance, approximately how much work is done in moving an object…

A:

Q: 20. A 0.58 kg box is pulled with 70 N of force at an angle of 150 above the horizontal across a flat…

A: Given: m = 0.58 kg, F = 70 N, θ = 15°, s = 17 m

Q: 10-kg dog is running with a speed of 5.0 m/s. What is the minimum work required to stop the dog in…

A: Given: The mass of the dog is 10 kg. The initial speed of the dog is 5 m/s. The final speed of the…

Q: A spring and block are in the arrangement of the figure. When the block is pulled out to x = +5.0…

A:

Q: Ellie is pushing a rolling bag at 40o with a force of 350 N and able to displace her bag by 2800 mm,…

A: The angle is Φ = 40o  Force is F = 350 N  Displacement is S = 2800 mm = 2.8 m

Q: What is the work done by the moving force in Joules

A: Mass, m=7Kg Velocity, v=20m/s Height, h=8.75m

Q: A sled of mass 70 kg starts from rest and slides down a 10° incline 80 m long. It then travels for…

A: Given Data: The mass of the sled is, m=70 kg The length of a horizontal sled is, l=20 m   The…

Q: You lift a 3kg pumpkin to a height of 0.80 m to check it out. How much work do you do on the pumpkin…

A: Consider the formula to obtain the value of work done is, W=mgh Here, m is the mass of the object, g…

Q: a 1.60 m tall person lifts a 1.65 kg book off the ground so it is 2.20 m above the ground. what is…

A: Given Data Height of the person is h=1.60 m Mass of the book is m=1.65 kg Final height of the book…

Q: A firefighter climbs a 10 m long ladder that is inclined at 40° to the horizontal.  If she has a…

A:

Q: You pick up a 1 N box 1.5 m upwards and walk with it 10 meters across the room, after which you…

A:

Q: A single force acts on a 0.99 kg particle-like object in such a way that the position of the object…

A:

Q: A 300-g object slides 80 cm in a straight line along a horizontal tabletop. How much work is done in…

A: Given:mass, m = 300 gm = 0.3 kgslides distance, d = 80 cm = 0.8 mco-efficient of kinetic friction,…

Q: A soccer player strikes a 428 gram ball with an initial velocity of 27.4 m/s. The ball strikes the…

A:

Q: A spring and block are in the arrangement of the figure. When the block is pulled out to x = +5.0…

A: Write the given values of the problem-  the block is pulled out then-x=5 cm force of the…

Q: QUESTION 6 A college student pushes a 40-kg filing cabinet that is initially at rest with a…

A:

Q: An object with mass m = 2 kg is released from rest at a height h = 6 m from the top of an inclined…

A:

Q: A force F = bx3 acts in the x direction, where the value of b is 3.7 N/m3. How much work is done by…

A:

Q: An accelerating object of mass m=17 kg is fired with an initial speed v-8 m/s at a starting point.…

A:

Q: Starting from rest, an 1800 kg car rolls down a hill 22 m high. It reaches the bottom going 15 m/s.…

A: Mass of car (m)= 1800 kg Height of hill = 22 m Velocity at bottom of the hill = 15 m/s

Q: 1) A 300 N force is applied to a box in the direction XY in order to move it up a ramp of the…

A: Work done = force x distance

Q: A 41.00 kg block starts from rest at the top of a 25.0 m long 30.0° incline. Its kinetic energy at…

A:

Q: A person pulls a 20 kg heavy box horizontally, which slides at a constant speed. The person makes a…

A: Given data: The mass of crate is m=20 kg. The maximum force applied is F=60 N. The distance traveled…

Q: The force acting on a particle varies as in the figure below. (The x axis is marked in increments of…

A: (a) The work done by the force as the particles moves from x=0 to x=12.0 m, that equals the area…

Q: A spring and block are in the arrangement of the figure. When the block is pulled out to x = +5.0…

A: Applied force (F) = 360 N Initial extension (d)= 5 cm = 0.05 m

Q: A certain spring whose normal length is 42 cm is stretched 6.3 cm by a force of 18 N. How much work…

A: Given Data: The normal length is, L =42 cm. The stretch is, x = 6.3 cm. The force required is, F =…

Q: A horse pulls a cart with a force of 0.2 kN at an angle of 27 degrees with the horizontal and moves…

A: Given: The applied force is 0.2 kN. The angle of the force with horizontal is 27o. The speed of the…

Q: dog picks up a 20 kg bone 0.40 m. carries it 30 m down the hall, and sets it back down 0.40 m to the…

A: Mass of bone = 20 kg  Initial vertical displacement = 0.4 m  Horizontal displacement = 30 m  Final…

Q: A constant force  F  = (8î + 5ĵ + 3k) N acts on object . As a result, the object moves along the…

A: Given : F  = (8î + 5ĵ + 3k) N The object moves along the x-axis from x = 0 m to x =  5 m. Therefore…

Q: An accelerating object of mass m=12 kg is fired with an initial speed v;-5 m/s at a starting point.…

A: Given: The mass of the body is 12 kg. The initial velocity of the object is 5 m/s. The final kinetic…

Q: A spring and block are in the arrangement of the figure. When the block is pulled out to x = +5.0…

A: Given that For Stretch length x = + 5 cm, applied force F = 360 N Full stretch of spring is = 12 cm…

Q: 7) A1,000[kg] rock is moved from the north end of a parking lot to the south end. The parking lot is…

A: Since, work done(W) is defined as the product of Force(F) and displacement(d).Mathematically:-…

Q: Ex(N) 80 50 25 X(m) 10 25 40 50 58 1) Work by a force, drawn on a graph, determine: a) The total…

A:

Q: A roller coaster of mass 800 kg is moving with a speed of 20.0 m/s at position A. At position C, the…

A: Given: The mass of the roller coaster is 800 kg. The final velocity of the roller coaster is 27 m/s.…

Q: A total force of 500 N is applied to pull a box on a rough surface along a distance of 60 m. If…

A: Given : Total force (F) = 500 N Distance (d) = 60 m Work done against friction (Wf) = 1000 J

Q: 1. A man carries a load of 500 N to a distance of 100 m. The work done by him is B. 50,000 Nm C.0 D.…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A food shipper pushes a wood crate of cabbage heads (total mass m = 14 kg) across a concrete floor…

A: Write the given values with the suitable variables. m=14 kgF=60 Nd=0.8 mv0=0.8 m/sv=0.3 m/s Here, m,…

Q: An accelerating object of mass m=14 kg is fired with an initial speed v-2 m/s at a starting point.…

A: