A force of 350 N causes a body to move with an acceleration of 10 m/s2. What's the mass of the body?
You have to use the equation F=ma and solve for m to get m=F/a.
m=mass in kg
F=force (in this case 350N)
a=acceleration (in this case 10m/s²)
when you plug everything in you should find that m=35kg
I hope this helps.