Answer:
5 kg
Step-by-step explanation:
∑Fx = 0
F1 + F2 = 0
-12 + 2 = -10
force acting against the block is Fx = 10N to the right.
Force = mass * acceleration
where acceleration = 2.0 meters per second.
force = 10 N
mass = ??
plugin values into the formula:
10 = mass * 2.0
mass = 10 / 2.0
mass = 5 kg
mass on the block = 5kg.