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Intro to Calculating Work Solutions Library

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38 solutions

Intro to Calculating Work

Q. Categorize each scenario according to whether or not work is done on the object:on the door as you push against it and open iton a toy car as you p...

Solved • Feb 11, 2021

Intro to Calculating Work

Q. If the force on an object is in the negative direction, the work it does on the object must be a. positive.b. negative.c. The work could be either ...

Solved • Dec 21, 2020

Intro to Calculating Work

Q. Whereas impulse involves the time that a force acts, work involves the

Solved • Nov 2, 2020

Intro to Calculating Work

Q. Force acting over a distance is the definition ofA. PowerB. WorkC. EnergyD. Impulse

Solved • Oct 15, 2020

Intro to Calculating Work

Q. The work you do when pushing a shopping cart twice as far while applying the same force is __________.

Solved • Oct 14, 2020

Intro to Calculating Work

Q. If the net work, done on an object is positive, what can you conclude about the object's motion?(Assuming there is no force of friction on the obje...

Solved • Oct 14, 2020

Intro to Calculating Work

Q. No work is done by gravity on a bowling ball that rolls along a bowling alley becauseA. No distance is covered by the ballB. No force acts on the b...

Solved • Oct 14, 2020

Intro to Calculating Work

Q. Part AYou push very hard on a heavy desk, trying to move it. You do work on the desk:a. whether or not it moves, as long as you are exerting a forc...

Solved • Oct 13, 2020

Intro to Calculating Work

Q. Find the work W done by the 30-newton force.

Solved • Jul 20, 2020

Intro to Calculating Work

Q. How much work is done by the boy pulling his sister d = 27.0 m in a wagon as shown in figure below? Assume no friction acts on the wagon and he pul...

Solved • Jul 13, 2020

Intro to Calculating Work

Q. A physics student uses a force P of magnitude 70N and angle = 50 degrees (with respect to the horizontal) to push a 5.2 kg block across the ceiling...

Solved • Jul 1, 2020

Intro to Calculating Work

Q. Learning Goal: To be able to calculate work done by a constant force directed at different angles relative to displacementIf an object undergoes di...

Solved • Jun 2, 2020

Intro to Calculating Work

Q. Find the work W done by the 12-newton force and the 15-newton force

Solved • May 27, 2020

Intro to Calculating Work

Q. The two ropes seen In the figure are used to lower a 255 kg piano 6.00 m from a second-story window to the ground.How much work is done by each of ...

Solved • May 26, 2020

Intro to Calculating Work

Q. Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.90×106 N, one at an angle 19.0 west of north, and the other at an a...

Solved • May 19, 2020

Intro to Calculating Work

Q. What is the transfer of energy to a system by the application of a force called?a) Dot product b) Power c) Work d) Watt e) Energy transformations

Solved • May 1, 2020

Intro to Calculating Work

Q. How much work is done by the boy pulling his sister d = 30.0 m in a wagon as shown in figure below? Assume no friction acts on the wagon and he pul...

Solved • May 1, 2020

Intro to Calculating Work

Q. Sam's job at the amusement park is to slow down and bring to a stop the boats in the log ride. If a boat and its riders have a mass of 900 kg and t...

Solved • Apr 28, 2020

Intro to Calculating Work

Q. A 710 kg car drives at a constant speed of 23 m/s. It is subject to a drag force of 500 N. What power is required from the car's engine to drive th...

Solved • Apr 7, 2020

Intro to Calculating Work

Q. Find the work W done by the 18-newton force.

Solved • Mar 18, 2020

Intro to Calculating Work

Q. An airplane pilot fell 370 m after jumping from an aircraft without his parachute opening. He landed in a snowbank, creating a crater 1.30 m deep, ...

Solved • Oct 31, 2018

Intro to Calculating Work

Q. A child is pulling a wagon down the sidewalk. For 9.0 m the wagon stays on the sidewalk and the child pulls with a horizontal force of 23 N . Then...

Solved • Oct 31, 2018

Intro to Calculating Work

Q. A 2400 N crate rests on the floor. How much work is required to move it at constant speed:(a) 4.1 m along the floor against a drag force of 240 N(b...

Solved • Oct 31, 2018

Intro to Calculating Work

Q. Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.8×106 N , one an angle 15 west of north and the other an angle 15 ...

Solved • Oct 31, 2018

Intro to Calculating Work

Q. A 0.60-kg book slides on a horizontal table. The kinetic friction force on the book has magnitude 1.6 N .How much work is done on the book ...

Solved • Oct 31, 2018

Intro to Calculating Work

Q. Using a cable with a tension of 1310 N, a tow truck pulls a car 5.00 km along a horizontal roadway. How much work does:(a) the cable do on the car ...

Solved • Oct 31, 2018

Intro to Calculating Work

Q. A 30.0-kg packing crate in a warehouse is pushed to the loading dock by a worker who applies a horizontal force. The coefficient of kinetic frictio...

Solved • Oct 31, 2018

Intro to Calculating Work

Q. You and three friends stand at the corners of a square whose sides are 8.0 m long in the middle of the gym floor, as shown in the figure . You take...

Solved • Oct 31, 2018

Intro to Calculating Work

Q. A fisherman reels in 12.0 m of line while pulling in a fish that exerts a constant resisting force of 25.0 N.If the fish is pulled in at constant v...

Solved • Oct 31, 2018

Intro to Calculating Work

Q. A boat with a horizontal tow rope pulls a water skier. She skis off to the side, so the rope makes an angle of 15.015.0 with her direction of motio...

Solved • Oct 31, 2018

Intro to Calculating Work

Q. On a farm, you are pushing on a stubborn pig with a constant horizontal force with magnitude 30.7 N and direction 37.0 counterclockwise from the +x...

Solved • Oct 31, 2018

Intro to Calculating Work

Q. A large crate sits on the floor of a warehouse. Paul and Bob apply constant horizontal forces to the crate. The force applied by Paul has magnitude...

Solved • Oct 31, 2018

Intro to Calculating Work

Q. The three ropes shown in the birds-eye view of the figure are used to drag a crate 3.6 m across the floor. How much work is done by each of the thr...

Solved • Oct 31, 2018

Intro to Calculating Work

Q. A raindrop of mass 3.35 x 10-5 kg falls vertically at constant speed under the influence of gravity and air resistance. Model the drop as a particl...

Solved • Oct 18, 2018

Intro to Calculating Work

Q. A shopper in a supermarket pushes a cart with a force of 35.0 N directed at an angle of 25.0° below the horizontal. The force is just sufficient to...

Solved • Oct 18, 2018

Intro to Calculating Work

Q. Two men, Joel and Jerry, push against a concrete wall that is 3 meters thick. Jerry stops after 10 min, while Joel is able to push for 5.0 min long...

Solved • Mar 6, 2017

Intro to Calculating Work

Q. A 50 kg crate is at rest on the floor, and you need to move it across a room. The floor you are moving it across has a coefficient of static fricti...

Solved • Feb 21, 2017

Intro to Calculating Work

Q. An object moves along a floor with some coefficient of kinetic friction. Which of the following statements is true? a. The work done by friction i...

Solved • Feb 20, 2017