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lord [1]
2 years ago
7

A b c or d for not heat

Physics
2 answers:
Oksana_A [137]2 years ago
8 0
The awnser would be a
Levart [38]2 years ago
7 0

Answer:

a

Explanation:

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A box of weight 74 N is sliding on a horizontal surface at a constant velocity due to an external force F-> of magnitude 4.8
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Answer

4.8 N

If the box is moving with a constant velocity, then we can say that the system is in equilibrium. This is because if the external force (F->) was greater than other forces the box would be accelerating. This tells us that this force (F->) is just enough to overcome friction and so it must be equal to 4.8 N.

The normal force has no effect to the horizontal velocities or forces. It is equal to -Weight. That is -74 N. The negative sign shows that the force is in opposite direction.

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2 years ago
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A CONTAMINATED WATER

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