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4 years ago

At what point on the position-time graph shown is the object's instantaneous velocity greatest?

Physics

2 answers:

ioda4 years ago

7 0

I'm probably going to have to say C. E as it seems the steepest right around there. If I'm wrong on that, it has to be B. B

gizmo_the_mogwai [7]4 years ago

7 0

Answer:

The velocity is greatest at B.

Explanation:

The velocity or instantaneous rate of change is represented on a sketch by the slope of the position curve at a point.

Analyzing the points.

The slope at points F or D have slope as 0, since we have flat tangent lines for them.

The slope for point E is negative, since the curve is decreasing.

The slope for point B is positive, since the curve is increasing at B.

Thus the greatest value of the velocity is point B due the curve is increasing at that point, and the velocity is represented by its slope.

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Difference between regular and irregular object.

DaniilM [7]

<h2>Answer:</h2><h2>Regular object</h2>

Those substance which have fixed geometrical shape are called regular object.
For example: books,pencils, basketball etc.

<h2>Irregular object</h2>

Those substance which do not have geometrical shape are called irregular object.
For example: a piece of stone,a broken piece of brick,leaf etc.

Hope this helps....

Good luck on your assignment.....

5 0

4 years ago

Describe the magnetic field in a bar magnet. Enter your answer in the spave provided.

neonofarm [45]

Answer:

The lines of the magnetic field from a bar magnet form closed lines. By convention, the field direction is taken to be outward from the North pole and into the South pole of the magnet. Permanent magnets can be made from ferromagnetic materials.

As can be visualized with the magnetic field lines, the magnetic field is strongest inside the magnetic material. The strongest external magnetic fields are near the poles. A magnetic north pole will attract the south pole of another magnet, and repel a north pole.

4 0

4 years ago

Explain convection in as little as possible

Gnoma [55]

Heat goes in a circle

6 0

3 years ago

Read 2 more answers

The mass of the rock is 1220 kg. It had 400 J of potential energy when it rolled down the hill. calculate the heihht.

Sauron [17]

potential is equal to mgh

we know that mass = 1220 kg

g=9.8 0r 10

400=1220*9.8*x

400=11956x

x=400/11956

5 0

3 years ago

Read 2 more answers

Wants to slide his 430g water bottle precisely 12m to land inside a Bull's Eye! If the coefficient of kinetic friction between t

AleksAgata [21]

Answer:

Ff = u M g frictional force where u = .62

1/2 M v^2 kinetic energy of water bottle at release

Ff * d = 1/2 M v^2 = u M g d work to stop equals initial kinetic energy

v^2 = 2 u g d = 2 * .62 * 9.8 * 12 = 146 m^2 / s^2

v = 12.1 m/s

3 0

3 years ago