Recent content by Issy04

Vibrations produce sound to animals due to the vibration caused in the air that passes through the ear. Thus molecules in the air vibrate when your examples occur and sound is the body's interpretation of these vibrations. The frequency of our ears must match that of the vibration. However, in a...

Thank you very much! It is clear now.

Thank you. I have calculated the correct value of P now but I am still confused as to why N does not equal 10sin60, as P has no vertical component?

Have you converted the mass and length into kg and m? Then rearrange v2=vo2+2ax to find a. Then sub that into F=ma.

Homework Statement Solve for the forces P and N acting on an object in equilibrium on an inclined plane. Weight=10N, angle is 30 degrees http://blob:https%3A//www.physicsforums.com/d431a152-5681-411b-ba57-809320539165 Homework Equations Trigonometry, i.e. sin, cos, tan rules. The 'Z' rule...