Question

How much force is required to accelerate a 50 kg mass at 2 m/s2?

Answer 1

=0.5 x40 
= (calculate it) 
2. F= -.45 x 41 
= 
3. F=20 x 12 
= 
4. F=50 x 30 
= 

I believe you can go on from here, remember its easy 

for the last 2 just rearange the formual 
for 9 it will be a=F/m and 10. m=f/a