Answer:
a ≈ 0.14 m/s²
Explanation:
Given
m = 1600 kg
F = 7560 N (↑)
Ff = 7340 N (↓)
a = ?
We can apply Newton's Second Law as follows
∑F = m*a (↑) Â
⇒  F - Ff = m*a  ⇒  a = (F-Ff)/m
⇒ a = (7560 N - 7340 N)/(1600 kg) = 0.1375 m/s² ≈ 0.14 m/s²