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Date: 10-3-2021
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Date: 15-9-2020
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Date: 13-9-2020
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VELOCITY IS A VECTOR
Because velocity has both magnitude and direction components, it is a vector quantity. You can’t express velocity without defining both these components. In the earlier example of a car driving along a highway from one town to another, its speed might be constant, but the velocity changes nevertheless. If you’re moving along at 25 m/s and then you come to a bend in the road,
your velocity changes because your direction changes. Vectors can be illustrated graphically as line segments with arrowheads. The speed component of a velocity vector is denoted by the length of the line segment, and the direction is denoted by the orientation of the arrow.
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دراسة: عدم ترتيب الغرفة قد يدل على مشاكل نفسية
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علماء: تغير المناخ تسبب في ارتفاع الحرارة خلال موسم الحج
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انطلاق مؤتمر الإمام الحسين (عليه السلام) ضمن فعاليات أسبوع الإمامة الدولي الثاني
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