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zavuch27 [327]
3 years ago
13

Calculate the amount of power in Watts) required to move an object weighing 525 N from point A to point B within 36 seconds. Dis

tance between point A and point B is 3.5 meters and they are at the same level.
Physics
1 answer:
MAVERICK [17]3 years ago
4 0

Answer:

Power required, P = 0 watts

Explanation:

It is given that,

Weight of the object, W = 525 N

Time taken to move from point A to B is, t = 36 s

Distance between A and B is 3.5 m.

Power required to move an object is given by work done divided by time taken.

P=\dfrac{W}{t}

Work done, W=Fd\ cos\theta

The weight of the object is acting in downward direction and object is moving in forward direction such that \theta=90

W=Fd\ cos(90)

Since, cos(90) = 0

This gives, work done = 0

As a result, the power required to move that object is 0 watts. Hence, this is the required solution.

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<h2>Answer:</h2>

<u>Friction:</u>

When an object slips on a surface, an opposing force acts between the tangent planes which acts in the opposite direction of motion. This opposing force is called Friction. Or in other words, Friction is the opposing force that opposes the motion between two surfaces.

The main component of friction are:

<u>Normal Reaction (R): </u>

Suppose a block is placed on a table in the above picture, which is in resting state, then two forces are acting on it at that time.

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The second one is superimposed vertically upwards by the table on the block, called the reaction force (P). This force passes through the center of gravity of the block.

Due to P = mg, the box is in equilibrium position on the table.

<u>Coefficient of friction ( </u>μ )<u>: </u>

The ratio of the force of friction and the reaction force is called the coefficient of friction.

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The coefficient of friction is volume less and dimensionless.

Its value is between 0 to 1.

<u>Advantage and disadvantage from friction force: </u>

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Answer:

(A) 3.1 m/s

(B) 2.0 s

Explanation:

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