Posted by **Kayla L** on Thursday, October 6, 2011 at 10:20pm.

A force of 8.7 N is applied to a steel block initally at rest on a horizontal frictionless surface. The force, which is directed at an angle of 30.0o below the horizontal, gives the block a horizontal acceleration of 5.3 m/s2.

a) Draw a free body diagram and sum forces.

b) What is the normal force of the surface acting on the block?

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