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Is it possible of a body to have its velocity and acceleration pointing in opposite direction plot a velocity-time graph if yes?
Yes, it is possible for a body's velocity and acceleration to be in opposite directions. This would result in the body's velocity decreasing over time while its acceleration remains negative. On a velocity-time graph, this situation would be represented by a curve that starts with a positive velocity and decreases over time.
What kind of feedback is required to keep internal conditions in the body constant?
Negative feedback.
What is then net force if the velocity of an object is changing?
As velocity is changing that means acceleration/deceleration is taking place. Hence, Force will not be equal to zero. However, the direction of force will depend on the direction of velocity of body. So, it's not possible to predict whether the force will be positive or negative. The net force can not be found as the dimensions of body like mass and change in velocity are not given in the question.
What are the conditions for a body stopped momentarily?
For a body to be momentarily stopped, its velocity must be zero at that instant. This means that there is no net force acting on the body, causing it to remain at rest for that brief moment.
Why does homoestasis involve negative feedback?
Homeostasis involves negative feedback because it helps maintain internal stability by counteracting deviations from a set point. When a parameter like body temperature or blood pressure strays from its normal range, negative feedback mechanisms work to bring it back to the optimal level. This process helps regulate bodily functions and ensure that the body can function properly under varying conditions.
Can a speed of a body be negative?
The 'speed' of a body cannot be negative. But if you are stating the 'velocity' then it can be negative. Negative velocity means it is going opposite to the direction that you decided to call the positive direction.
Can momentum have a negative velocity?
No, momentum can not have a negative velocity. Velocity is the rate of motion of a body from one position to another position in a particular direction. Bodies traveling in opposite directions may appear to have a negative velocity in relationship to each other but any amount of velocity is positive.
Can an object's acceleration be a negative number?
Yes, an object's acceleration can be a negative number if it is experiencing deceleration or moving in the opposite direction of its positive acceleration. Negative acceleration represents a decrease in velocity over time.
Can the speed of body be negative?
The problem here is the conflating of the term "speed" with "velocity". Velocity is a vector - it has both intensity and direction. Velocity can be negative. Speed really only has magnitude, so it is normally only positive; since there is no direction associated you can't define a meaning for negative speed (unless you decide to define it as synonymous with velocity) When a body is thrown in upward direction and upward motion is defined as positive velocity, its velocity decreases with time and at highest point speed and velocity become zero. When the body falls downward its speed i increases until hit the ground but since it is moving in the opposite of the direction that was defined as "positive", its velocity is negative.
Can a body have negative speedwhy?
No. The speed is the length of the velocity vector, and that is always zero or positive.
What are the conditions for an object to stay at rest to keep moving at constant velocity or the move with increasing velocity?
A body is moving at constant velocity including zero at Equilibrium Condition, No change of energy or zero force. With force a body can accelerate, move with increasing velocity.
How do you draw velocity time graph for a body thrown vertically upwards?
To draw a velocity-time graph for a body thrown vertically upwards, the initial velocity will be positive (upwards) and steadily decrease due to gravity until reaching zero at the peak. After the peak, the velocity becomes negative as the body falls back down. The graph will have a symmetrical shape with the velocity decreasing and then increasing back to the initial velocity.
State the conditions needed for a body to have nonuniform velocity?
One condition, the net force acting on the body should not be zero.
When a body moving with uniform and negative acceleration?
When the body is in simple hermonic motion
Why is the velocity of accelerated body may be zero?
The velocity of an accelerated body may be zero when it temporarily stops moving at a specific point during its acceleration process. This can happen if the body changes direction or experiences a deceleration that causes its velocity to drop to zero before changing again to increase its velocity in the opposite direction.
Is it possible of a body to have its velocity and acceleration pointing in opposite direction plot a velocity-time graph if yes?
Yes, it is possible for a body's velocity and acceleration to be in opposite directions. This would result in the body's velocity decreasing over time while its acceleration remains negative. On a velocity-time graph, this situation would be represented by a curve that starts with a positive velocity and decreases over time.
Under what condition a body whose velocity is directed towards east has an acceleration directed west?
If an external force is acting in the westward direction on the body that is greater than any eastward force or velocity the body has, then the body will experience an acceleration directed west even though its velocity is directed east.
