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What is the average velocity when a person traveling on a straight line moves with a uniform velocity v1 for x distance and v2 for next equal distance?
Wiki User
∙ 12y ago
Let t1 and t2 be the times for the two stages.
Then t1 = x/v1
and t2 = x/v2
Total distance = x + x = 2x
Total time = t1 + t2 = x/v1 + x/v2 = x*(1/v1 + 1/v2)
Average velocity = total distance / total time
= 2x divided by x/(1/v1 + 1/v2)
= 2(1/v1 + 1/v2) which is the Harmonic mean of v1 and v2.
Wiki User
∙ 12y ago
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What is average velocity?
Average velocity is def.ined as the ratio of total displacement to total time taken.
Calculate distance from a velocity time graph?
The area between the graph and the x-axis is the distance moved. If the velocity is constant the v vs t graph is a straight horizontal line. The shape of the area under the graph is a rectangle. For constant velocity, distance = V * time. Time is the x-axis and velocity is the y-axis. If the object is accelerating, the velocity is increasing at a constant rate. The graph is a line whose slope equals the acceleration. The shape of the graph is a triangle. The area under the graph is ½ * base * height. The base is time, and the height is the velocity. If the initial velocity is 0, the average velocity is final velocity ÷ 2. Distance = average velocity * time. Distance = (final velocity ÷ 2) * time, time is on the x-axis, and velocity is on the y-axis. (final velocity ÷ 2) * time = ½ time * final velocity ...½ base * height = ½ time * final velocity Area under graph = distance moved Most velocity graphs are horizontal lines or sloping lines.
What measures the rate of change in velocity?
Police measur speed with a radar gun. It uses the Doppler effect to find speed. You can measure distance traveled and use a stopwatch to measure speed yourself. You asked about velocity, however. Velocity is the combination of speed and direction. To measure velocity, you have to track the direction of travel. For that, either a compass, a chart or some other measure.
How is the velocity-time graph related to the distance traveled?
The product of velocity and time yields distance travelled if the velocity is constant for the time in question. If velocity is not constant, one must first calculate the average velocity over a given time period before multiplying it by the time involved.
What distance does it move vertically?
What distance does it move vertically? Throw a ball straight up. Gravity will slow it down at the rate of 9.8 m/s each second. Example A ball is thrown up at a velocity of 49 m/s. Due to gravity it will slow down at the rate of 9.8 m/s each second. After 5 seconds the ball will stop, it is at its highest point; the velocity is 0 m/s. The initial velocity was 49 m/s; the final velocity is 0m/s.The average velocity is 24.5 m/s. Distance = Average velocity * time Distance = 24.5 m/s * 5 seconds = 122.5 m Here are the physics equations I used!! Acceleration due to gravity = g = -9.8m/s each second = -9.8m/s^2 (negative because gravitational force pulls down toward the center of the Earth!! Vfinal = Vinitial + (acceleration * time) 0 m/s = 49m/s+ (-9.8m/s^2 * time) -9.8 t = - 49m/s t = 5 seconds Average velocity = (49m/s + 0) ÷ 2 Average velocity = 24.5 m/s Distance = Average Velocity * time. Distance = 24.5 m/s * 5 seconds Distance = 122.5 m
What is average velocity?
Average velocity is def.ined as the ratio of total displacement to total time taken.
What is velocity quantity?
The average speed of an object is defined as the distance traveled divided by the time elapsed. Velocity is a vector quantity, and average velocity can be defined as the displacement divided by the time. For the special case of straight line motion in the x direction, the average velocity takes the form:
What is the average speed of the car traveling 300km in 6hrs?
Velocity (or speed) = Distance ÷ Time In this example, speed = 300/6 = 50 kph
Is distance the magnitude for average velocity?
No. Average speed is.
It is the average velocity multiply by time?
Velocity x time = distance
What are the types of molecular velocities?
the two types of velocity are distance and traveling time. although they may seem a little suspicious now you can even log on to my website at:http:/www.velocityandjunk.com/discussvelocity_and_matter/inc.
Is Distance the magnitude of average velocity?
No. Average velocity is still a velocity.Distance is a product of (a velocity or speed) times (a length of time).
Is velocity a vector or a scalar?
no its a vector quantity,not a scalar quantity,bcz still it z a velocity bt NT a speed On a typical journey the average velocity is the straight-line distance between the start and finish, divided by the time taken, and it also has a direction. The average speed is the actual distance run, divided by the speed. The average speed might not be equal to the magnitude of the average velocity. For example on a round trip the average speed might be 40 mph, while the average velocity is zero.
When is the average velocity is equal to the instantaneous velocity?
Average velocity equals the average speed if (and only if) the motion is in the same direction. If not, the average speed, being the average of the absolute value of the velocity, will be larger.
What condition average speed is equal to average velocity?
1. magnitude of distance covered is equal to the magnitude of displacement. 2. the motion of the object is in a straight line i.e. in a particular direction.
Total distance divided by total time?
total velocity * * * * * It is the average speed, not velocity which is a vector.
Which describes the average velocity of an ant traveling at constant speed in a straight line on the kitchen counter?
The slope of the ant's displacement vs. time graph The total displacement divided by the time.
