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ahrayia [7]
3 years ago
8

A cardboard box has four forces acting upon it, as shown in the diagram below. What is the magnitude of the unknown force, Funkn

ownacting on the box if the box is accelerating at 2.0 m/s 2 to the right?

Physics
1 answer:
AlekseyPX3 years ago
5 0

Answer:

D)  11 N

Explanation:

F = mg

In the vertical

30 = m(9.8)

m = 3.06 kg

in the horizontal

F = ma

F(unknown) - 5 = 3.06(2.0)

F(unknown) = 11.12... N

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tigry1 [53]

Answer:

The refracted angle will be less than the angle of incidence and the speed of light is slower in the new medium (which is water) and is closer to the normal.

Try remembering this by using FST SFA (Fast Sofa)

                                             Fast -> Slow = Towards the normal

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4 0
3 years ago
9. Calculate the distance (in km) that Charlie runs if he maintains the average
Karo-lina-s [1.5K]

<u>Correct Question:</u>

Calculate the distance (in km) charlie runs if he maintains an average speed of 8 km/hr for 1 hour

<u>Answer:</u>

The total distance covered by Charlie is 8 km in 1 hour.

<u>Explanation:</u>

The average velocity as given in the question is,

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v=\frac{d}{t}

d=v \times t

d=8 \times 1

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Hence, the total distance covered by Charlie in 1 hour will be 8 km.

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Which forces are shown on a free body diagram?
notsponge [240]

Answer:

What is a Free Body Diagram?

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Explanation:

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3 years ago
Read 2 more answers
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