Gravitational field is a vector quantity, as it has both magnitude (strength) and direction. It represents the force experienced by a mass placed in the field due to the presence of another mass.
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WEIGHT is a VECTOR quantity .. because the weight has the direction into the surface of the earth to the down effected by the gravity .. but mass is a scalar quantity like 90 kg .. so .. WEIGHT IS VECTOR ..
Yes, you can add a scalar to a vector by adding the scalar value to each component of the vector.
The center of gravity is a vector quantity as it has both magnitude and direction. It represents the single point where the entire weight of an object can be considered to act.
No, upthrust is not a scalar quantity. It is a vector quantity as it has both magnitude and direction. Upthrust is the upward force exerted by a fluid on an object immersed in it, and its direction is always opposite to the direction of gravity.
The gradient of a scalar field is a vector because it represents the direction of steepest increase of the scalar field at a given point. It points in the direction of the greatest rate of change of the scalar field and its magnitude represents the rate of change. This vector provides valuable information about how the scalar field varies in space.