A runner starts from rest and accelerates uniformly to a speed of 8.0 meters per
second in 4.0 seconds. The magnitude of the acceleration of the runner is
0
32 m/s/s
O 9.8 m/s/s
o 2.0 m/s/s
0
0.50 m/s/s

2 m/s²

Step-by-step explanation:

Step 1:

Let the initial velocity be 0 m/s and the final velocity be 8 m/s and the time traveled is 4 s.

From the basic science,

Acceleration = ( Final Velocity - Initial Velocity) / Time

Step 2:

Acceleration = (8-0)/4

2 m/s²

282 6/7 cm^2

step-by-step explanation:

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: