1. Determine the power of a heavy equipment that performs 5.5 x 102 Joules of work in 1.1 seconds. 2. How much work is done by a power lifter that pushes a car with a force of 800 N at a distance of 200 m?

Q: As a 1,350 kg truck travels up a 15.9 m high hill, the nonconservative forces of friction and the…

A: According to the Work Energy theorem, work done by all kinds of forces on the body is equal to the…

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: 4. A crate is being lifted into a truck. If it is moved with a 4270 N force and 6755 J of work is…

A: Write the expression for the work done. Here, F represents the force and d represents the…

Q: QUESTION 8 How much work (in J) must be done to lift a stack of bricks, which has a mass of 50 kg,…

A: Given: The mass of the stack of bricks is 50 kg. The height of lift is 4 m. The acceleration due to…

Q: 1. What work is done by a girl who pushes a box along the floor with a force of 80 newtons for a…

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

Q: A car of mass 1078 kg moves up a mountain road with the help of a nonconservative force that does…

A:

Q: 3. A big man is towing a large box with a cord that makes an angle of 25 degrees with the…

A: Work done is the dot product of force and displacement. The unit of work done is the joule(J).…

Q: 2. It takes 185 kJ of work to accelerate a car from 23.0 m/s to 28.0 m/s. What is the car's mass?

A: Given: The total work done is 185 kJ. The initial speed of the car is 23 m/s. The final speed of the…

Q: 3. A gardener pushes a 30.0 kg lawnmower on a flat surface for 10.0 m with a force of 100. N at an…

A: Given, Mass(m)=30kg Distance (s)=10m Force (F)=100N Angle=30

Q: 1. Calculate the work done by a force of 30 N in lifting a load of 2kg to a height of 10m (g =…

A: Required work done by given forces to displace the objects.

Q: How much work did the movers do (horizontally) pushing a 46.0-kg crate 8.1 m across a smooth floor…

A:

Q: A force of 20 Ib is required to hold a spring stretched 8 in. beyond its natural length. How much…

A:

Q: A person pulls a crate 42.6 meters along a horizontal floor by a constant force 118.1 N which acts…

A: distance moved (d) = 42.6 meters constant applied force (F) = 118.1 N θ = 37.2ofrictional force (f)…

Q: 1.A worker leans on a crate and pushes it on a horizontal surface with a force of 235 N in a…

A:

Q: 9. A sailor pulls a boat along a dock using a rope at an angle of 60.0° with the horizontal. How…

A: A sailor pulls a boat along a dock using a rope at an angle =60 Applied force F=225 Distance d=30.0…

Q: How much work is done by a 500 N rightward force that acts on a boat as it moves 30 m to the left? *…

A: Applied force (F) = 500 N ( in rightwards direction) distance moved (d) = 30 m ( to the left)

Q: 1. You must exert a force of 4.5 N on a book to slide it across a table. If you do 2.7 J of work in…

A: Soln-  i)  Given Force = 4.5N And work(w) = 2.7J We know that W= f * d           -i) Where w ->…

Q: 2) A 6, 500 kg truck with an initial speed of 10 m/s accelerates for 17 seconds to a final speed of…

A: Given data Mass of the truck, m=6500 kg Initial speed, u= 10 m/s final speed, v=22 m/s Acceleration…

Q: Need help with knowing how to solve practice exam questions so I can pass my exam next week. Plz…

A:

Q: A 550 kg elevator accelerates upward at 1.2 m/s2 for the first 15 m of its motion. How much work is…

A:

Q: 1. Emma pushes a 45.0kg box across a level floor with an applied force of 155N [30° above…

A:

Q: 1. What is the net work of a system if there is an applied force pushing it at a value of 6703.03N…

A: Solution: as given F = 6703.03 N d = 65.42 m coefficient of kinetic friction = 0.05 m = 116.76 kg

Q: A 941 kg elevator carries passengers with combined mass of 455 kg as it ascends at constant speed of…

A:

Q: 1.A worker leans on a crate and pushes it on a horizontal surface with a force of 235 N in a…

A: Given data: Force, F=235 N Distance, d=12.5 m Angle between the vectors (force and displacement),…

Q: 13. Which requires more work, carrying a 420-N knapsack up a 200 meter high hill or carrying a 210-N…

A: Given  two forces F1= 420N and F2 = 210N And two displacement d1= 200m and d2 = 400m So we have to…

Q: 1. Two forces that are F, = 10 N and F2 = 5 N act on a body in a frictionless floor. If the…

A: 1. Given data: Magnitude of force 1 is, F1=10 N. Magnitude of force 2 is, F2=5 N. Displacement is,…

Q: A person pulls a crate 41.3 meters along a horizontal floor by a constant force 118.4 N, which acts…

A:

Q: Hawkeye pulls a quiver attached to his bow back 68 cm by exerting a force that increases uniformly…

A: GivenDistance moved ,x=68 cm=0.68 mForce increase uniformly with distance from 0 to 285 NF=285 N

Q: 2. A man pushes a 270-N block 9.1 m along a level floor at constant speed with a force directed 45°…

A:

Q: A box of mass 12.0 kg begins at rest, and is accelerated at a rate of 1.5 m/s2 by a force F for 10.0…

A: Given data:  Mass (m) = 12.0 kg Initial velocity (v0) = 0 m/s Acceleration (a) = 1.5 m/s2 Time (t) =…

Q: 1. How much mechanical work is done on a brick wall if a man pushing with a 250 N force fails to…

A: We will answer the first question since the exact one is not specified. Please resubmit the request…

Q: How much work is done by a girl weighing 500 N in climbing 5.0 m up a rope in the school gym?

A: Given data:  Weight (mg) = 500 N Height (h) = 5.0 m Required: Work (W)

Q: 11. What happens to the kinetic energy of a moving object if the net work done is positive? c. The…

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

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: Calculate the work done by a 47 N force pushing a pencil 0.26 m.

A: Write the given values with the suitable variables. F=47 Nd=0.26 m Here, F is the force and d is the…

Q: Work is done while lifting a 200.0 N barbell 0.75 meters over your head. Given this information, how…

A: Given Data: The lifting force is, F=200.0 N The distance between barbell and your head is, d=0.75 m…

Q: 9- How much work must be done to stop an 1800 kg vehicle traveling at 30 m/s ? a- 1.8 x 104J b- 5.4…

A: mass of vehicle (m) = 1800 kg Initial velocity of vehicle (u) = 30 msfinal velocity of vehicle (v) =…

Q: (2) The combined force of lift and thrust on a model airplane is a constant F = (4i + 3j + 6k) N. a.…

A:

Q: 4. Identify a case where an object is moving over a surface with friction, but the frictional force…

A: The frictional force is the force that acts between the surface of contacts between two objects.…

Q: 1) How much work must one do to pull the block up 13 meters?  The mass is 44 kg.

A:

Q: 1. What work is done by a girl who pushes a box along the floor with a force of 80 newtons for a…

A: In this question we have to find the work done by the girl in pushing the box. Note: Due to company…

Q: 4. How much is the work done in pulling up a block of wood weighing 300 N for a length of 300 cm on…

A: Given: The weight of the wooden block is 300 N. The angle of the inclination is 35°. The length of…

Q: 1. A 150 kg crate is being pushed horizontally 12.8 m across a rough floor without accel- erating.…

A: m=150 kg s=12.8 m μk=0.42 g=9.8 m/s here, m is the mass of the crate s is the distance it is pushed…

Q: A person pulls a crate 43.6 meters along a horizontal floor by a constant force 116.5 N, which acts…

A:

Q: A person pulls a crate 42.7 meters along a horizontal floor by a constant force 115.6 N, which acts…

A: Given crate displacement =  42.7 m constant force applied = 115.6 N, which acts at 37.8 degrees.…

Q: As a 1,240 kg truck travels up a 15.0 m high hill, the nonconservative forces of friction and the…

A: mass, m = 1240 kg  height, h = 15 m  work by friction, W' = - 3.03 x 105 J  Work by engine, W'' =…