posted by Tomomi .
A force of 15 N is applied at an angle of 30 degrees with the horizontal on a 0.75 block at rest on a frictionless surface.
a. What is the magnitude of the resulting acceleration of the block?
b. What is the magnitude of the normal force?
Is the mass of the block 0.75 kg? Do not omit the dimensions that go with your numbers.
The force component in the direction of motion is
Fx = 15 cos30 = 13.0 N
Since there is no opposing friction,
a = Fx/M = 0.37 m/s^2