lecture5_post - Phy 2053 Announcements Homework 1 due 2 am...

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Phy 2053 Announcements ± Homework 1 due 2 am Jan 20 will count towards course grade. ± Past exams and solutions available at Target Copy for $20 ± Should have received email listing your clicker response. Clicker questions will count towards course grade starting Jan 26.
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Kinematic Equations ± Used in situations with uniform acceleration =+ o vv a t 2 o at 2 1 t v x + = 22 2 o a x (1) (2) (3) t 2 v v t v x f o average + = = Important: use the correct sign for x, v and a.
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Displacement, Velocity, and Acceleration ± The position of an object is described by its position vector, ± The displacement of the object is defined as the ± change in its position (meter) ± Velocity (meter/sec) ± Acceleration (meter/sec 2 ) t r v av r r = r r fi =− rr r r t r v av r r = t v a av r r = can change speed, direction, or both av a r
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t r v av r r = New Physics Building to Target copy
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t r v av r r = t r lim v 0 r r = t Instantaneous velocity Tangent to the object’s path in the direction of its motion
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lecture5_post - Phy 2053 Announcements Homework 1 due 2 am...

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