The force on the last car of a train with a mass of 4.5 kg is 8.0 N. What is the train's acceleration in m/s2?

1.78 m/s²

Step-by-step explanation:

Force (N) =  Mass (kg) × acceleration (m/s²), meaning an object of constant mass accelerates in proportion to the force applied.From there

acceleration = Force / Mass = 8.0 N / 4.5 kg = 1.78 m/s²

125 yards

step-by-step explanation:

i take 75 plus 50.

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9