A train accelerates at 2m/s2 for 3s from an initial velocity of 5m/s. What is its final velocity? 1
Remember the equation for final velocity
v = u + at
2
Substitute the values in.
v =
+ (2 ×
)

for example, no new evidence will demonstrate that the earth does not orbit around the sun (heliocentric theory), or that living things are not made of cells (cell theory), that matter is not composed of atoms, or that the surface of the earth is not divided into solid plates that have moved over geological timescales .