Answer:
a=1.25ms^-2
Step-by-step explanation:
We can use the equation f=ma where f=force,m=mass and a= acceleration
When we substitue the values of 1st incident to the equation we get,
f=5kg*10ms^-2
f=10N
for the 2nd incident,(given mass=8kg and we found the force above)
a=f/m
a=10N/8kg
a=1.25ms^-2