Physics Home work help?

Question

A force is applied to a mass at 30 degrees to the horizontal so that the mass moves along the horizontal. The mass is 2.0kg and acceleration is 2.5m/s^2. What is the magnitude of the force

Answer 1

F = m*a* sin D

so F = 2*2.5* sin (30) = 2*2.5*1/2= 2.5 N