what is force? example also?
what is work done?
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Answers
There are many examples of forces in our everyday lives: weight force (i.e. the weight of something) the force of a bat on the ball. the force of the hair brush on hair when it is being brushed. the force of your foot pushing on the pedal when you ride your bike .
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Answer:
while pushing a table towards the wall is the contact force, or you are pulling something upwards is also a contact force because there is a direct contact between you and the object you are pulling. ... For example, an apple fell on Newton because of an invisible force called gravity.
Work, in physics, measure of energy transfer that occurs when an object is moved over a distance by an external force at least part of which is applied in the direction of the displacement. ... If the force is being exerted at an angle θ to the displacement, the work done is W = fd cos θ.