If the wavelength doubles and the speed stays the same what happens to the frequency? Tell me how you got the answer please!

a displacement distance is size of displ

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer

i think its c if i'm wrong

answera compound;