Lesson: Work Done by a Constant Force
In this lesson, we will learn how to calculate the work done by a constant force on a particle moving horizontally or vertically.
Sample Question Videos
Worksheet: 25 Questions • 1 Video
A body of mass kg was placed on a plane inclined at an angle of to the horizontal. A force of magnitude N acted on the body causing it move 4 m up the plane. The line of action of the force was inclined at an angle of to the plane’s line of greatest slope and it lay in the same vertical plane containing this line. Determine the work done by the force over this displacement and the work done by gravity . Take .
A body of mass 900 g was projected vertically upwards at 6.4 m/s. Find the work done by the weight of the body during the first 5 seconds of the motion of the body. Take .
A tram was pulled 15 m along its track, by a rope making an angle of with the track. Given that the tension in the rope was 193 kg-wt, find the work done by the tension in joules. Take the acceleration due to gravity .