The velocity of an object can be changed by altering the object’s speed, changing its direction of motion, or both.
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For an object moving along a straight line at a variable speed, average velocity is calculated in the same way as average speed.
The term used to describe the speed of an object moving in a definite direction is velocity.
In uniform motion, the object covers equal distances in equal time intervals. For instance, if an object moves 5 m in each second, it maintains this consistent speed.
The stars appear higher in the sky than they actually are due to atmospheric refraction. As starlight enters the Earth’s atmosphere, it bends towards the normal because the atmosphere’s density increases closer to the surface. This bending makes the stars ...