What is the difference between forced and natural convection?

Forced is not natural, there's a catalyst for what happens as natural convection occurs in its own phenomena without an external body imposing upon it to act

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

because if the tool that you are using is not balanced it there would be false mass.