All categories

3 years ago

Please help me do this problem

Physics

1 answer:

Digiron [165]3 years ago

4 0

Answer:

i) acceleration from B to D is 0, because the velocity is constant (stays the same)

ii) whatever units of distathat might be, we can calculate the number:

for 4 time-steps (2 to 6) the velocity is 6 per time step, that makes 24 distance units in these 4 time steps. it's the same the area underneath the graph.

there is also the vertical line from 0 to 2. we can calculate that distance like the area of a triangle with 2*6 / 2 = 6

the total distance from 0 to D is therefore 30

You might be interested in

While performing an experiment, the student creating the data table is not sure if a measurement from the experiment is a vector

marin [14]

Before coming into conclusion first we have to understand both scalar and vector .

A scalar quantity is a physical quantity which has only magnitude for it's complete specification.

A vector quantity is that physical quantity which not only requires magnitude but also possesses direction for it's complete specification.

So the most important factor that differentiate vector from scalar is the direction.

As per the question the student is doing an experiment where he is recording the data obtained during the process.

In order to arrange them in data table, he should ask about the direction of the quantity under consideration.

Hence the correct option is the third option(C)i.e does the measurement include direction?

7 0

3 years ago

Read 2 more answers

Which of following statements is TRUE? A) In a radio, sound energy is transformed into electricity energy. B) In a microwave ove

Natasha2012 [34]

DDDDDDDDDDDDDDDDDDDDDDD IS THE ANSWER

7 0

3 years ago

Read 2 more answers

The force of gravity is an inverse square law. this means that, if you double the distance between two large masses, the gravita

Nadya [2.5K]

F~1/r²
weakens by 1/4

4 0

4 years ago

Which of the following is a FALSE statement about acceleration? A. Acceleration can be zero, positive, or negative. B. An object

Anni [7]

Answer:

D. Acceleration is always in the same direction as velocity.

Explanation:

First of all, let's remind the definition of acceleration:

Acceleration is equal to the rate of change in velocity, in formula

$a=\frac{\Delta v}{\Delta t}$

where $\Delta v$ is the change in velocity and $\Delta t$ is the time interval.

It is important to keep in mind that acceleration is a vector, so it has a direction.

Now let's analyze each statement:

A. Acceleration can be zero, positive, or negative. --> TRUE. When acceleration is positive, it means that its direction is the same as the velocity, so the object is speeding up; when acceleration is negative, it means that its direction is opposite to the velocity, so the object is slowing down; when acceleration is zero, the object has constant velocity.

B. An object can have acceleration with zero velocity. --> TRUE. In fact, an object can be moving with a positive velocity and having a constant negative acceleration: this means that its velocity will decreases until it becomes zero and then it turns negative. At the moment the velocity is zero, the acceleration is not zero.

C. An object can have acceleration with negative velocity. --> TRUE. The direction of the acceleration does not depend on the direction of the velocity: an object with negative velocity is moving in the direction opposite to that used as reference, so it can still have an acceleration.

D. Acceleration is always in the same direction as velocity. --> FALSE. As we we said in point a and c, the direction of the acceleration does not depend on the direction of the velocity, so an object with positive velocity, for example, can have a negative acceleration (it means that the acceleration is in the opposite direction, so the object is slowing down).

5 0

3 years ago

At an outdoor market, a bunch of bananas is set on a spring scale to measure the weight. The spring sets the full bunch of banan

Elina [12.6K]

Answer:

2.67kg

Explanation:

The maximum velocity, $v _ {max}$ of a body experiencing simple harmonic motion is given by equation (1);