The last question i need help on and can you explain please? On D

Answer:
speed
Explanation:
Acceleration means an increase in the rate or speed of something.
Answer:
d) 25 m/s²
Explanation:
[tex]\boxed{F = ma}[/tex]
where F= force (N), m= mass (kg), a= acceleration (m/s²)
Net force
= 125 -75
= 50 N
(This is found in part a)
Given that the mass is 2kg, m=2.
F= ma
50= 2a
a= 50 ÷2
a= 25 m/s²