Suppose you increase your walking speed from 6 m/s to 12 m/s in a period of 1 s. what is your acceleration ?

When you answer this can you explain

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm

Angle that produces maximum distance