If he pushes the lawn mower 30.0 m, how much work has been done to move the mower?Īnswer: The force is at an angle of 60.0° with respect to the movement. So Work done W x h again Even though the object has moved distance s in total, it has only moved distance h in the direction of the force (i.e. The force he is applying to the handle of the lawn mower is angled down, 60.0° from the horizontal plane. About Pricing Login GET STARTED About Pricing Login. Every spring has its own spring constant k, and this spring constant is used in the Hooke’s Law formula. To find the work required to stretch or compress an elastic spring, you’ll need to use Hooke’s Law. The work done by the tractor to move the wagon the given distance was 12 000 000 J, which can also be stated as mega-Joules: 12.0 MJ.Ģ) A man is pushing a lawn mower across his yard. Every spring has its own spring constant k, and this spring constant is used in the Hooke’s Law formula. Find how much work was done by the tractor to pull the wagon.Īnswer: The force and the movement were in the same direction, so the angle between them is 0°.
In this case, there is only one force acting upon the object: the force due to. Work done is equal to the product of the magnitude of applied force and the distance the body moves from its initial to the final position. The force acted in the same direction as the movement. The formula for work is displaystyle WFd, work equals force times distance. The formula for work is defined as the formula to calculate the work done in moving an object. The force exerted on the wagon to move it that distance was 12 000 N. The work accomplished is equal to the change in potential energy: W. Calculate the unknown variable in the equation for work, where work is equal to force. To lift an object slowly, a force equal to its weight (mg) is applied through a height (h).
Workdone formula full#
1) A tractor pulled a wagon full of hay a distance of 1000 m. Calculate work (W) as a function of force (F) and displacement (s).
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