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Setler [38]
4 years ago
12

The motion of a skateboarder along a horizontal axis is observed for 5 seconds. The initial position of the skateboarder is nega

tive with respect to the origin, and its velocity throughout the 5 seconds is also negative. At the end of the 5 seconds, is the skateboarder closer to or further from the origin (compared to where it started)?
Why? Explain.

Physics
1 answer:
Leto [7]4 years ago
8 0

Answer:

The skateborder is further from the origin.

Explanation:

In order to visualize this problem better we need to sketch what the situation looks like. (See attached picture)

Now, generally we will take the left side as the negative direction. As you  may see in the picture, the skateborder starts to the left of the origin and he has a negative velocity as well, so he would be moving left all the time. After the 5 seconds, the distance between the origin and the skateboarder is even greater than it was before. This is because he kept moving left. So he will be further from the origin compared to where it started.

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When are Waves produced​
serg [7]

Answer:

Waves are caused by wind, or are created by the friction between wind and surface water

Explanation:

7 0
3 years ago
A crate with a mass of 175.5 kg is suspended from the end of a uniform boom with a mass of 94.7 kg. The upper end of the boom is
Rudiy27

The tension in the cable is equal to 323.5 N.

<h3>What is the tension in the cable?</h3>

The tension, T in the cable is determined by taking moments about the pivot  marked X.

The angles of the boom and the cable with the horizontal are first calculated.

Angle of the boom with horizontal, θ = tan⁻¹(5/10) = 26.56°

The angle of cable with horizontal, B = tan⁻¹(4/10) = 21.80

Taking moments about the pivot:

175.5 * cos 26.56 + 94.7 * cos 26.56 * 0.5 = T (sin(26.56 + 21.80) * 1

Tension = 241.68/0.747

Tension = 323.5 N

In conclusion, the tension in the cable helps to suspend the crate.

Learn more about tension at: brainly.com/question/24994188

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6 0
2 years ago
state position nature and size of an image when an object placed at an distance equal to its focal length of rear view in vehicl
maksim [4K]

Answer:

The position nature and size of an image when an object placed at a distance equal to its focal length of rear view mirrors in vehicle will be

1) Position: Behind the mirror

2) Nature: Virtual

3) Size: Smaller than the object

Explanation:

Due to the nature and use of rear view mirrors, which are meant to enable the front facing driver visualize a wide area of the back portion of the vehicle, such that the images of the object will always remain smaller than the object, require a convex image

The image size, location, nature and orientation of an object placed in front of a convex mirror is diminished, behind the mirror of the upright, virtual, and upright

Therefore, the position nature and size of an image when an object placed at a distance equal to its focal length of rear view mirrors in vehicle will be

Position: Behind the mirror

Nature: Virtual

Size: Smaller than the object.

5 0
3 years ago
The nearly circular path that earth takes around the sun is called
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It is called an "orbit". Repeating and regular path that one object in space takes around in another one. This object ca be satellite or natural satellite like our moon. Planets, comets, asteroids and other objects in the solar system orbit the sun. Orbits come in different forms or shapes. All orbit are elliptical which means they are ellipse, similar to oval.
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3 years ago
What happens when you push a spring? How is this different than pulling it? (Hooke’s Law)
Yuki888 [10]

A spring is an object that can be deformed by a force and then return to its original shape after the force is removed.Springs come in a huge variety of different forms, but the simple metal coil spring is probably the most familiar. Springs are an essential part of almost all moderately complex mechanical devices; from ball-point pens to racing car engines.

7 0
3 years ago
Read 2 more answers
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