Compute the work (in joules) required to compress a spring 3 cm
1 answer:
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The frictional force between two surfaces is given by:
where
is the coefficienct of friction
is the force with which one surface is pushed against the other one
Looking at the formula, we see that there are two possible ways to increase the friction:
1) by increasing the coefficient of friction (for instance, by making the surfaces more "rough"
2) by increasing, the force with which one surface is pushed against the other
Similarly, in order to decrease the friction, the two possible ways are:
1) by reducing the coefficient of friction
2) by reducing the force
where
Looking at the formula, we see that there are two possible ways to increase the friction:
1) by increasing the coefficient of friction
2) by increasing
Similarly, in order to decrease the friction, the two possible ways are:
1) by reducing the coefficient of friction
2) by reducing the force
Answer:
Explanation:
Given that,
Current flowing in the wire, I = 40 A (+x direction)
Speed of the electron, (+y direction)
Distance from the wire, r = 0.1 m
Let F is the electric force on the electron. It is given by :
Here,
Here,
So, the force on the electron at this instant is . Hence, this is the required solution.