This one is for 25, the next will be 30

a = -1.833 m/s²

Explanation:

Acceleration is the change in velocity over change in time, so you will use a = Δv/Δt or you can also use a = (v-v0)/t, both means the same thing, and I will show you how to use the latter equation.

a = average acceleration

v = final velocity = 7 m/s

v0 = initial velocity = 18 m/s

t = time = 6 s

a = (v-v0)/t

a = (7m/s - 18m/s) / 6s

a = -1.833 m/s²

volts times amps 6 x 0.5 3w

wavelength divides in half and speed stays the same.