A go cart engine applies a force of 888n and moves the cart forward 22m. What was her power.
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It is the rate of work done or rate of energy transfer.
Work power and energy worksheet answers pdf. What is her power output in lifting the child. Download work energy power problems with solutions pdf 497 kb equella is a shared content repository that organizations can use to easily track and reuse content. Energy can t be created or destroyed it can only be changed from one type into another type.
In fact any type of energy can be converted into any other type of energy. G sandwich across a table 0 75 m wide. Work energy and power in this section of the transport unit we will look at the energy changes that take place when a force acts upon an object.
The concept of power is concerned with how rapidly energy is being transferred or transformed when work is done. A girl pushes on the box with a force of 15 n 5 meters to the right. Work and power worksheet answer each question by calculating for the missing variable.
How much work is done. In some cases this conversion can be done efficiently such as between kinetic energy and electrical energy. 6 energy work and power conversion of energy we have already explained how kinetic energy and gravitational potential energy can be converted backwards and forwards.
Work work and energy are the same thing. When a force moves. What is the power.
Find the work done by the girl. A woman lifts a 300 newton child a distance of 1 5 meters in 0 75 seconds.
Work power energy worksheet. We call this rule conservation of energy. A 60 kg box rests on a horizontal frictionless surface.
B the displacement is in the same direction as the force of friction. Work power and energy worksheet. Work force x distance.
How much work is done. Please circle your final answer and be sure it has the proper label. Physics worksheet work and energy section.
Be sure to show all calculation work in the space provided. W f x d. If the driver wants to go further will the amount of work increase or decrease.
A force of 10 n is applied to a 2 0 kg mass at rest on which the force of friction is 4 0 n. What is doing the work. Power is measured in joules per second j s r o watts w and is worked out using the formula.
If you do 2 7 j. Calculate the work done by a 47 n force pushing a 0 025 kg pencil 0 25 m against a force of 23 n. A box is pushed across the floor for a distance of 5 meters with a force of 50 newtons in 5 seconds.
Do you need a bigger engine to go further. How much work did she do. You must exert a force of 4 5 n on a book to slide it across a table.
Consider two blocks stacked one above the other on a table. We put on a bigger engine 1111n but the cart still moves forward 22m. Physics work and energy worksheet solutions part i 1.
In physics power is associated with energy and has a precise meaning. This oer repository is a collection of free resources provided by equella. Calculate the work done by a 47 n force pushing a pencil 0 26 m.
Calculate the work done by a 2 4 n force pushing a 400.
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