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Intro to Calculating Work Solutions Library

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19 solutions

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