2. Are you doing work in these situations? Also a question from your PHYS1111 class.

Q: 1. Using a force of 150 newtons, you push a sofa to the other side of a room, a distance of 3.1…

A: #1 Given data: The applied force is F=150 N. The distance moved is L=3.1 m.

Q: Can you expend energy without doing any work? Given an example.

A:

Q: The person does work on the lawn mower. Under what conditions would the mower gain energy? Under…

A: In the figure it is shown, man is pushing a mover and is doing a work  From this work of the…

Q: 13.A block is dragged across a floor with a force of 200N that acts at an angle of 90 degrees to the…

A: F= 200N Angle between force and displacement direction = 90° distance ,d = 3m

Q: How much work does a supermarket checkout attendant do on a can of soup he pushes 0.410 m…

A: Write the equation for the work done. Work done (W)=Force F×displacementd

Q: What is the net work equation

A: The net work is defined as sum of all the work that is done by the external forces. The net work is…

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 Joules of…

A: To determine: The distance moved by the book   Given: Force applied on the book, F=4.5 N Work done…

Q: A 4 kg ball falls from height of 23 m. What willbe potential energy of the ball after 0.8 second?…

A:

Q: A 2.00-kg rock is released from rest at a height of 20.0 m. Ignoring air resistance, determine its…

A: Scenario - A rock at rest is thrown downwards from certain height. Air resistance does not affect…

Q: 1. A student of mass 40 kg caries a bag weighing 5000g from the ground floor to his class on the…

A: Given Mass of boy is 40kg Mass if bag is 5000g or 5 kg Total mass is 40+5 = 45 kg

Q: What can you say about this picture?

A: Given: from the given diagram. The applied force is F. The displacement of the object is D. The…

Q: When a stretched spring is released, what happens to the work that was done in stretching it?

A: When a spring is stretched from its initial position, the work is done on the spring to change its…

Q: 11. Can a normal force on an object ever do work on the object? Explain.

A:

Q: 1.12 When a bicycle rider is traveling at a speed of V = 24 mph, the power P she needs to supply is…

A: In this question we have to find the power and the energy for the rider. Please give positive…

Q: 3. Which of the following shows an example of Potential Energy? O A football flying through the air…

A:

Q: A vehicle of 50 quintal climbs up a hill of 10 m. The potential energy gained by it is (take g = 10…

A: Calculating the potential energy by formula P = mgh

Q: 41. The second floor of a house is 6 m above the street level. How much work is required to lift a…

A: Mass of refrigerator (m) = 300 kg  Height of second floor (h) = 6 m

Q: A warehouse worker lifts a 10 kg box a half a meter. How much work has the worker done? (Assume g =…

A: Given, Mass of box, m= 10kg, distance, d=12m=0.5 m, and g= 10 m/s2.

Q: The energy we require to live comes from the chemically stored potential energy in food, which is…

A:

Q: What is the work by man in moving crate to distance of 1.9 m Force applied on crate=11 N

A: Given Applied force (F) = 11 N  Distance moved (d) = 1.9 m    Work done by man (W) = F × d

Q: 13. A 700-kg horse whose power output is 1.0 hp is pulling a sled over the snow at 3.5 m/s. Find the…

A:

Q: Calculate the potential energy of a 4.5 kg bowling ball that is on the ground. Assume that g = 9.8…

A: First of all, we should discuss what is the potential energy of a system, so Potential energy-The…

Q: 6- The work done by spring of force constant k=300 N/m on a block as it displaced from x-0 to x-2 cm…

A: x=Displacement of spring=(2−0)=2 cmk=Spring constant=300 N/m

Q: If Brooke does 400 joules of work to push a bookcase 10 meters across a room, how much force did she…

A: Given :     Work done, W = 400 J     Distance, d = 10 m

Q: 5. Calculate the work being done on 2000 N crate, being lifted 2 meters off the ground by a crane.…

A:

Q: Calculate the power output needed for a 950-kg car to climb a 2.00º slope at a constant 30.0 m/s…

A: Given : m - 950 kg g - 9.8 m/s2 Ffriction - 600 N θ - 2° v - 30 m/s

Q: What is the relationship between work and energy? Give a concrete example or evidence of their…

A: Work is a physical quantity basically it is the energy transferred to or gained from an object on…

Q: 21. If 30 joules of work is required to lift a 10-N box from the floor to a table, how high is the…

A:

Q: An arctic tractor drags a 45 ton (thats metric ton:  1 ton = 1000 kg) across the snow, which has a…

A:

Q: Using work in physics, list down 5 chores you do everyday that exhibits work. Just briefly your…

A: In physics, work involves the displacement of an object due to an applied force. The work done on an…

Q: 11. A 2.0-kg piece of gelatin is made to slide down a ramp from point a to point b, as shown. The…

A: mass = 2 kg total distance between a and b = 2 m vertical distance between a and b = 0.8 m weight =…

Q: 7. Using conservation of mechanical energy concepts, calculate the kinetic energy and velocity of a…

A: The conservation of energy states that 'if there is no external force acting on a system then the…

Q: 18. A hallway of energy is constructed. People are told that to do 1.00 J of work, they should pull…

A:

Q: Calculate the work done by gravity on a 5kg box being lifted 0.85 m from the surface. Determine the…

A:

Q: 14. If an air conditioning unit that weighs 30 kg is hanging out a window that that is 10 meters up…

A: Energy stored in a body due to position is called potential energy. Here the energy is in the form…

Q: What are the various energy transformations that occur when you are riding a bicycle?

A: While riding a bicycle, biker has the muscular energy. Rider's muscular energy gets converted to…

Q: 2. How many joules of work are done against a cart when a force of 50 N pushes it 1 kilometer away?

A:

Q: Find out Kinetic energy and Potential energy of a cat 12 kg, running on a wide wall that is 3 m high…

A: Kinetic Energy is given by:- KE=12mv2KE=12×12×62KE=216 J   Potential Energy is given by:-…

Q: 1. An object accelerates from 4 m/s to 9m/s. determine the mass of the object if the net work done…

A: Given:-1)  object accelerates from 4m/s to 9m/s  The net wok done by the objcet is W= 350 J 2) if…

Q: 2. How much works is done by a force of 35 N that was applied to push a cart of 8.5 m along the…

A:

Q: 2. Starting from rest, a 1.00 kg crate is accelerated across a floor at a rate of 3.0 m/s^2 for 0.50…

A: Initial speed of box; u = 0 m/s Mass of box: m = 1.00 kg Acceleration of box: a = 3.0 m/s2 Time…

Q: If you want to jump as high as possible, it’s best to move downward quickly to a deep crouch,…

A: Crouch position is a position which is taken by an sprinter before sprinting off. As, it provide…

Q: A soccer player accelerates a 0.50-kilogram soccer ball by kicking it with a net force of 5 newtons.…

A: Given  Mass m=0.5 kg Force applied F=5N

Q: 8. If a powerlifter raises a 1,000 N weight a distance of 2.0 meters in 0.5 seconds, what 1,000 W is…

A: The rate of work done is defined as the power. To solve the given question at first we will…

Q: 01 7. A 10.-kilogram rubber block is pulled horizontally at constant velocity across a sheet of ice.…

A: The diagram is shown below:

Q: Calculate how much negative work does on the 7s Kg object, What is the speed of the object after the…

A: The kinetic frictional force will act during the time object is travelling on grass. Given , the…