Physics 3151A/B Study Guide - Final Guide: Gravitational Potential, Centripetal Force, Heat Capacity
25 Jun 2013
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Document Summary
Displacement = distance travelled in specific direction, net" distance travelled from certain position (p). Velocity = change in displacement per change in time (delta s / delta t). Vector quantity: v = final velocity, u= intial velocity. Acceleration = change in velocity per change in time (delta v/delta t). Acceleration is constant in free fall with an accelerating force of: 9. 81ms-2. Air resistance is also a factor, as you accelerate downwards, obviously your velocity will increase. As your velocity increases, so will the resistance of the air until a point where the resistance is so high, that you will cease to accelerate and maintain a uniform velocity. Tangent to a point on s-graph = instantaneous velocity. Forces: tension, normal force, upthrust (buoyancy, air resistance, gravitational force (w=mg, friction. Newton"s first law inertia: all forces are balanced, things that are in motion stay in motion, things that are in rest stay in rest.
