Physics

Kinematics

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Top Answer

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.

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0if four horses with equal power are pulling one from opposite sides, it will not move. means net force would be zero. same is at center of earth. the mass of earth around center attracts equally to all sides( because geometrical center and center of mass are same). so net force is zero. On the other hand if you think of gravity as a force puling you into the centre of the earth then when you are at the center of the earth gravity must be zeero

The magnitude of average velocity of an object equal to its average speed if that object is moving with CONSTANT velocity.

No, it can't. Average VELOCITY can be zero, though.

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,

Velocity is Speed in a given direction. Moving at constant velocity is equivalent to say moving with a constant speed in a specified direction. So, moving at constant velocity implicitly means moving with constant speed.

Yes, if it returns to its starting place, the average velocity for the cycle will be zero. The average SPEED, however, will not be zero.

For the instantaneous value of average velocity, average speed and average velocity are equal.

Velocity is speed and its direction. Average velocity is average speed and its direction.

velocity is a vector and speed is scalar. Velocity has magnitude and directions, with magnitude being speed. The magnitude of average velocity and average speed is the same.

The average speed of an moving object is determined by using the formula velocity=distance/time or v=d/t.

Speed is a scalar quantity that refers to how fast an object is moving. Speed can be thought of as the rate at which an object covers a distance. While velocity is a vector quantity that refers to the rate at which an object changes its position. But when we calculate speed and velocity what we get is average not instantaneous. Average Speed= Distance travelled ------------------------ Time period Average Velocity= Displacement ------------------------ Time period

acceleration is the increase of speed in a moving object. velocity is the speed and direction of a moving object.

no ... not SPEED OF A MOVING CAR ......IT is to measure the average speed of a carThis can help :DRoy , Brunei

When an object is not moving. (Velocity is speed)

Direction. Velocity has speed and direction

No, they are not the same! Velocity involves the speed and the direction of the moving object...

A body moving at a uniform speed may have a uniform velocity, or its velocity could be changing. How could that be? Let's look. The difference between speed and velocity is that velocity is speed.

Speed is distance by time and velocity is displacement by time. If an object is moving with speed distance can never be zero but displacement can. So we say velocity can be zero.

speed is how fast an object is moving, velocity is how fast an object is moving in a given direction.

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.

Velocity tells you what speed a moving object travels at and in what direction.

same speed , coz velocity is constant velocity consists of speed and direction...

Speed and velocity cannot be unequal for the same object. Speed tells you how quickly something is moving (as measured, for example, in meters per second) and velocity tells you how quickly something is moving and in what direction it is moving.

Motion describes that something is moving. Speed describes how fast something is moving. Velocity describes how fast something is moving and in what direction its moving.

Speed is how fast something is moving.Velocity is how fast something is moving in a very specific direction.25mph is a speed25mph at 137degrees 30 minutes north azimuth is a velocity.

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