What is the direction of average velocity?
Average velocity is the ratio of total displacement to total time. Its direction is the same as the direction of the moving object. Even if the object is slowing down, and the magnitude of the velocity is decreasing, its direction would be still the same as the direction in which the object is moving.
Can average speed be zero?
The average speed cannot be zero unless the body is stationary over a given interval of time. Average speed is the ratio of the total distance travelled by a body to the total time interval taken to cover that particular distance.
What if the average velocity is 0?
Average speed is not necessarily the same as the magnitude of the average velocity, which is found by dividing the magnitude of the total displacement by the elapsed time. For example, if a trip starts and ends at the same location, the total displacement is zero, and therefore the average velocity is zero.
Can average velocity be zero even if average speed is not zero?
The average speed of car is 10 m/s, but average velocity is zero because displacement is zero.
What does it mean if an object has negative velocity?
Velocity is a vector quantity. If we’re moving along a line, positive velocity means we’re moving in one direction, and negative velocity means we’re moving in the other direction. Speed is the magnitude of the velocity vector, and hence is always positive.
Is it possible to have a negative speed a negative velocity?
It is not possible to have negative speed. Negative velocity, however, is possible. Speed is a scalar quantity with just magnitude, whilst velocity is a vector quantity comprising of magnitude and direction. Hence, negative velocity is speed (its absolute magnitude) in the opposite direction.
Is it possible to go negative speed?
This means that it is always positive. Velocity is a vector quantity, so it can be negative. Speed is the magnitude of the velocity vector, so it can never be negative. So ‘negative speed’ is really impossible, because speed by definition is the magnitude of your velocity in a particular direction.
Can scalars be negative?
Any scalars that are defined as the magnitude of a vector is non-negative. But, there are some scalars that can be negative. If a scalar can be represented on a number line, then it is a real number, and both positive, and negative numbers, and zero. …
Can you have positive velocity and negative acceleration?
An object which moves in the positive direction has a positive velocity. If the object is slowing down then its acceleration vector is directed in the opposite direction as its motion (in this case, a negative acceleration).
Can there be positive acceleration and negative velocity?
Assuming rightward is positive, the velocity is positive whenever the car is moving to the right, and the velocity is negative whenever the car is moving to the left. The acceleration points in the same direction as the velocity if the car is speeding up, and in the opposite direction if the car is slowing down.
Is it possible that your cycle has a northward velocity?
Answer. Yes, it is possible If an object is moving and it slows down the acceleration acts opposite to it. Consider an cycle moving towards northward but when the brakes are applied it slows down so acceleration acts in opposite direction (southward acceleration).
Is it possible that your cycle has northward velocity but southward acceleration?
Yes , when brakes are applied to a cycle moving northward. At that instant, it has a northward velocity and a southward acceleration .
Is it possible that your cycle has a northward velocity but southward acceleration give example?
No , it is not possible because the velocity and acceleration both should be in one direction then only movement of cycle is possilble or else cycle will not move .
Can a body have northward velocity and southward acceleration?
Can an Object Have a Northward Velocity and a Southward Acceleration? Yes, an object can be moving at the same time that it is also slowing down. During this period, its acceleration is in the opposite direction of its velocity.
Is it possible that your car possesses northward velocity but southward acceleration explain?
The answer is when the car is traveling northward (that’s a velocity toward the north) slows down. Slowing down is an acceleration, but it’s a negative one. So if the car is traveling north the direction of the acceleration will be south. However, you have a velocity northwards at this moment.
Can an object have a southward velocity while moving northward?
Can an object have a southward acceleration while moving northward? Yes, an object can be moving at the same time that it is also slowing down. During this period, its acceleration is in the opposite direction of its velocity.