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How is it possible for a car to have an average velocity of zero and an average speed of 65 mph?
Wiki User
∙ 11y ago
If the car has an average speed of 65 mph, when it returns to its starting point, it will have a displacement of zero and an average velocity of zero, because velocity has both speed and direction.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoAcceleration refers to the change of velocity per time unit. If the velocity doesn't change, acceleration is zero.
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What is the name of the condition when the average velocity of atmospheric molecules around you is not zero?
Wind
A ball is thrown vertically upward. What are its velocity and acceleration when it reaches its maximum altitude What is the acceleration of the ball just before it hits the ground?
At the maximum height the ball will be completely stopped from moving upward or downward; thus the speed of the ball would be 0 mph. The ball is only stopped for a split second and then it begins moving downward, then increasing at 9.81m/s^2 until it reaches maximum velocity.
What does the y - intercept on a force vs acceleration graph represent?
Answer #1:The y intercept should be zero because of Newton's second law. Force andacceleration are directly proportional. The X intercept indicates that there issome force required to overcome friction if friction is not negligible. This valueis the force required to accelerate the object usually very small.===============================Answer #2:It's even easier than that. The graph had better pass through the origin,because zero force on an object means it can't be accelerating, and zeroacceleration of an object means there can't be any net force acting on it.Go back and read Answer #1 above very carefully. It correctly says that they-intercept is zero. But doesn't that mean that the graph must go through theorigin, and that the x-intercept is therefore also zero ? I'm just sayin . . .
Atrophy of skeletal tissue?
Possible in a zero gravity enviroment, if that's what you're asking. Along with muscle atrophy.
How Can a body moving with certain velocity in the direction of east have acceleration in the direction of west?
velocity is a vector quantity and also acceleration is a vector quantity. Suppose my automobile is travelling in north direction and I apply brakes to it then until the automobile stops it will move in north direction while the acceleration will act in south direction as brakes are applied.
Average velocity of a particle is zero but not its average speed .. is it possible?
Yes - for example, if an object moves in a circle.
Can a body have nonzero average speed but have zero average velocity give example?
An object moving in a circular path at constant speed will have a non-zero average speed and zero average velocity since velocity is a vector parameter,
Can the average speed of a body be zero and can the average velocity of a moving body be zero?
Since speed is a scalar quantity, the only way the average speed can be zero is if the instantaneous speed is at all times zero, making it not a moving body, so no on the average speed. The average velocity, on the other hand, can easily be zero. The simplest example is you running in a circle.
Is it possible for an object to move for 10 seconds at a high speed and end up with an average velocity of zero?
Yes
Is it possible that a body has zero speed and nonzero velocity?
No because velocity defined as speed in a given direction so if speed is 0 then velocity must also be 0
Can the average velocity of a particle be zero but not its average speed?
Yes, since velocity is speed and direction its average can be zero. For example say a plane flies from point A to point B at 300 mph and turns around to go from B to A at 300 mph; its average velocity is 0 since it is in the same spot as it started ( the velocity vectors cancel) but its average speed is 300 mph.
Can average speed of a moving object be zerogive an example?
No, it can't. Average VELOCITY can be zero, though.
When is average speed of an object not equal to average velocity?
For example, an object goes in a circle, at a speed of 50 km/hour. The average speed is 50 km/hour; the average velocity is zero.
Is it possible in straight line motion particle have 0 speed and a non-zero velocity .explain?
Sounds like a trick question. The answer is no. Speed is a scalar with magnitude only and velocity is a vector with magnitude (speed) and direction. So If traveling with velocity in a straight line it has speed..
Is it possible for a body to have average speed but zero average velocity give reason and example?
Yes it is possible. If a body goes round a circular path then distance covered by one full rotation will be 2 pi r But the total displacement is 0. Hence the average speed exists but average velocity does not exist.
Is it possible to have a situation in which the speed of a particle is always zero but the average speed is not zero?
No. If the speed is always zero, then the average of its speed at any two points in time is also zero.
How would you differentiate between speed and velocity?
Speed is the magnitude of distance travelled per unit time, whereas velocity depends on the magnitude of distance travelled as well as the direction of motion. Speed is a scalar quantity, velocity is a vector. Speed cannot be negative, velocity can be negative. Average speed of an object after travelling a certain distance is always non-zero, but for velocity the average velocity can be zero (this follows from the previous idea).
