Question

A boy running a race accelerates at 10 m/s square for the first 2 seconds of the race find the distance he covered

Answer 1

Answer:

Distance(s) = ?

Acceleration(a)  = 10m/s²

Time(t) = 2 s

Initial Velocity(u) = 0

Use the 2nd equation of motion

s = ut + 1/2at²

s = 0 X 2 + 1/2 X 10 X 2²

s = 0 + 5 X 4

s = 0 + 20

s = 20 m