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How can you obtain the average velocity and instantaneous velocity from a displacement time graph?
Wiki User
∙ 7y ago
You cannot because a dispacement-time graph is concerned only with motion in a radial direction; any motion in a transverse direction is completely ignored. For example, an object circling the origin at a fixed distance, even with a variable speed, is always at the same distance from the origin. So the displacement-time graph will be a straight line whose height is the radial distance. A straight line in the distance-time graph is to be interpreted as no motion! Really?!
The average velocity in the radial direction is the final displacement minus the starting [initial] displacement, all divided by the difference in time between the two points. The instantaneous velocity in the radial direction is the slope [gradient] of the graph at the point in question.
Wiki User
∙ 7y ago
To obtain the average velocity from a displacement-time graph, you can calculate the slope of the line connecting two points on the graph. Divide the change in displacement by the change in time.
To obtain the instantaneous velocity, you need to find the slope of the tangent line at a specific point on the graph. Choose a point on the graph and draw a line tangent to the curve at that point. The slope of this tangent line will give you the instantaneous velocity at that specific point.
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How can you obtain the average velocity and instantaneous velocity from a displacement - time graph?
You cannot because a displacement-time graph is concerned only with radial motion: displacement from a fixed point of reference. Any transverse motion is completely ignored. Thus, if you had a body going around in a circle about the point of reference, its speed would be recorded zero!
What does a distance time graph allow you to find?
Besides obviously distance at any instant, on a connected, continuous distance-time graph, you can obtain instantaneous velocity and instantaneous acceleration.
How can you obtain an average velocity and instantaneous velocity from a displacement-time graph?
The gradient of the tangent at that point, or if you know the equation of the line, the differential of the equation at that point.. This is similar but It is simpler: Step 1 -- From the distance-time graph, if you know what time you are particularly in, go to your time axis (should be the horizontal axis) and from this particular time (point) on the time axis, go vertically upwards until it intersects the graph. Step 2 -- At this point of intersection, go horizontally to the left and read the value of the point at which this horizontal line intersects the vertical axis. This is the distance travelled by the body/particle at the particular instant chosen. Step 3 -- To determine the instantaneous velocity, simply divide the distance (determined in Step 2) by the time (from Step 1).
What lab equipment would you need to measure the density of a piece of metal?
To obtain the density you need to know the mass, and the volume of the object.So you'd have to weigh it using a balance to obtain the mass.The easiest way to measure the volume (particularly if it's an irregular shape) would be via the displacement of water.density = mass / volume
How much do you decrease your kinetice energy when you decrease your speed by double?
Kinetic energy is given by mv2, where m is mass and v is speed. To obtain a result let me divide the new kinetic energy, m(v/2)2 (where the initial velocity is divided by two), by the initial velocity, mv2. (v2/4)/v2 = 1/4 The kinetic energy will be one fourth of what it was when the speed is halved.
How can you obtain the average velocity and instantaneous velocity from a displacement -time graph?
You cannot because a displacement-time graph is concerned only with radial motion: displacement from a fixed point of reference. Any transverse motion is completely ignored. Thus, if you had a body going around in a circle about the point of reference, its speed would be recorded zero!
How can you obtain the average velocity and instantaneous velocity from a displacement - time graph?
You cannot because a displacement-time graph is concerned only with radial motion: displacement from a fixed point of reference. Any transverse motion is completely ignored. Thus, if you had a body going around in a circle about the point of reference, its speed would be recorded zero!
What does a distance time graph allow you to find?
Besides obviously distance at any instant, on a connected, continuous distance-time graph, you can obtain instantaneous velocity and instantaneous acceleration.
How can you obtain the average velocity from a displacement time graph?
-- Pick two points on the graph. -- Find the difference in time between the two points. -- Find the difference in displacement between the same two points. -- (Difference in displacement) divided by (difference in time) is the average Speed . You can't tell anything about velocity from the graph except its magnitude, because the graph displays no information regarding the direction of motion.
How would you obtain the acceleration of an object from a velocity time graph?
The average acceleration can be obtained by finding the slope of the graph. The instantaneous acceleration is found by drawing a tangent to a particular point on the graph (instant) and finding the slope of than tangent.
How can you obtain an average velocity and instantaneous velocity from a displacement-time graph?
The gradient of the tangent at that point, or if you know the equation of the line, the differential of the equation at that point.. This is similar but It is simpler: Step 1 -- From the distance-time graph, if you know what time you are particularly in, go to your time axis (should be the horizontal axis) and from this particular time (point) on the time axis, go vertically upwards until it intersects the graph. Step 2 -- At this point of intersection, go horizontally to the left and read the value of the point at which this horizontal line intersects the vertical axis. This is the distance travelled by the body/particle at the particular instant chosen. Step 3 -- To determine the instantaneous velocity, simply divide the distance (determined in Step 2) by the time (from Step 1).
What must be multiplied to force to obtain work done?
Force*displacement
How do you find instantaneous speed of the body at certain point?
To obtain instantaneous speed you will need to utilize the formula v = speed multiplied by time if you have the speed already. If you do not have the speed use v = dx/dt.
What is the average speed at t equals 20?
Assuming t is time, you need to know the distance traveled in time t. Then, divide the distance by time to obtain speed (velocity).
Why can you not use francium?
Francium is very radioactive and very difficult to obtain; heating of francium due to the decay leads to instantaneous vaporization of francium.
What is the water displacement method?
Mass ____ V2- V1 V1 is the Initial Volume and V2 is the Final Volume. To obtain the Initial volume, measure the amount of water you have in your instrument before putting the object in and record that value. Lastly, measure the amount of water you have now that you've dropped your object in. Record this value too. Now you have your initital and final volume and are almost ready to get your Density! Mass, by the way, is a given. All you have to do is basically weigh whatever object you have :)
How does an author obtain copyright?
Initially copyright protection is instantaneous as soon as the author has fixed his/her story in a "tangible medium". If formal registration is deemed necessary the author, or his/her agent will have to contact the Copyright Office in their area for instructions.
