Answer:it's a chemical change.physical changes occur without 2 or more reactants,a reaction,and a product
Explanation:
Given
The y-component of vector K is

The magnitude of vector K is , K=8 cm
To find
The angle

Explanation
Resolving K along its y-component we have,

Conclusion
The angle made with the x-axis is
<span>A vector which implies that an
object has been moved or has changed its position is called displacement.
Displacement is usually associated with length and direction of an imaginary
straight point. It is the shortest distance from the initial point to the final
point of final position (P). Displacement can also be described as the length
between the final and initial point on the shortest path. It means an overall change
in direction of the object or point of a
body.</span>