Which describes the St. Lawrence River?

Geography

1 answer:

Vlad1618 [11]3 years ago

5 0

Answer:

so sorry.

Explanation:

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While pulling a bicycle out of the garage, you must pull it a total of 17 m with a force of 27 N. How much work are you doing on

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<h2>Answer:</h2>

The Work $W$ done by a Force $F$ refers to the release of potential energy from a body that is moved by the application of that force to overcome a resistance along a path.

It should be noted that it is a scalar magnitude, and its unit in the International System of Units is the Joule. Therefore, 1 Joule is the work done by a force of 1 Newton when moving an object, in the direction of the force, along 1 meter:

$1J=(1N)(1m)=Nm$

Now, when the applied force is constant and the direction of the force and the direction of the movement are parallel, the equation to calculate it is:

$W=(F)(d)$ (1)

When they are not parallel, both directions form an angle, let's call it $\alpha$ . In that case the expression to calculate the Work is:

$W=Fdcos{\alpha}$ (2)

For example, in order to pull the bicycle out of the garage, you have to apply a force along the distance $d$ to overcome the resistance of the weight of the bicycle.

In this case both (the force and the distance in the path) are parallel, so the work $W$ performed is the product of the force $F$ by the distance traveled $d$ , as shown in equation (1).

Hence:

$W=(27N)(17m)$