sciencehelp77 said:
Yes, it is possible for an object to have a positive velocity and a negative displacement. This means that the object is moving in a positive direction but ending up at a position lower than its starting point. For example, a ball thrown upwards will have a positive velocity while it is still rising, but as it falls back down, its displacement will be negative.
Velocity is a vector quantity that describes the rate of change of an object's position over time. It includes both the speed and direction of the object's motion. Displacement, on the other hand, is a vector quantity that describes the change in position of an object from its starting point to its end point, regardless of the path taken.
Yes, an object can have a positive velocity and zero displacement if it returns to its starting position after moving in a positive direction. For example, if you walk forward for 10 meters and then turn around and walk back 10 meters, your displacement is zero but your velocity was still positive while you were moving forward.
In classical physics, there is no maximum velocity an object can have. However, according to Einstein's theory of relativity, the speed of light is the maximum velocity in the universe. No object with mass can travel at the speed of light, and as an object approaches the speed of light, its mass increases and it requires more and more energy to accelerate it further.
Velocity and acceleration are both vector quantities that describe an object's motion. Velocity is the rate of change of an object's displacement, while acceleration is the rate of change of an object's velocity. In other words, acceleration describes how quickly an object's velocity is changing over time.