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# lecture05 - Physics 1 7 Apr 2010 Acceleration Acceleration...

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Physics 1 7 Apr. 2010 Acceleration Average acceleration Instantaneous acceleration Constant acceleration Acceleration Physics 1 – Morrison 7 April 2010

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Physics 1 7 Apr. 2010 Acceleration Average acceleration Instantaneous acceleration Constant acceleration Acceleration We continue our study of the motion of a particle conﬁned to a straight line .
Physics 1 7 Apr. 2010 Acceleration Average acceleration Instantaneous acceleration Constant acceleration Acceleration We continue our study of the motion of a particle conﬁned to a straight line . Last time, we considered the displacement of the position of a particle (in the x direction) in a given time interval, representated by Δ x = x 2 - x 1 .

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Physics 1 7 Apr. 2010 Acceleration Average acceleration Instantaneous acceleration Constant acceleration Acceleration The change in position with respect to time determines the velocity of the particle, so the average x -velocity is the x -component of displacement, Δ x , divided by the length of the time interval, Δ t . v av - x = x 2 - x 1 t 2 - t 1 = Δ x Δ t .
Physics 1 7 Apr. 2010 Acceleration Average acceleration Instantaneous acceleration Constant acceleration Average acceleration Today, we will study acceleration , which is the change in velocity with respect to time.

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Physics 1 7 Apr. 2010 Acceleration Average acceleration Instantaneous acceleration Constant acceleration Average acceleration Today, we will study acceleration , which is the change in velocity with respect to time. Thus, the average x -acceleration is the x -component of velocity, Δ v x , divided by the length of the time interval, Δ t . a av - x = v 2 x - v 1 x t 2 - t 1 = Δ v x Δ t .
Physics 1 7 Apr. 2010 Acceleration Average acceleration Instantaneous acceleration Constant acceleration Average acceleration An astronaut uses a hand-held rocket to move along a straight line, with velocity measured as follows: t v x t v x 1.0 s 0.8 m/s 9.0 s -0.4 m/s 3.0 s 1.2 m/s 11.0 s -1.0 m/s 5.0 s 1.6 m/s 13.0 s -1.6 m/s 7.0 s 1.2 m/s 15.0 s -0.8 m/s

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Physics 1 7 Apr. 2010 Acceleration Average acceleration Instantaneous acceleration Constant acceleration Average acceleration An astronaut uses a hand-held rocket to move along a straight line, with velocity measured as follows: t v x t v x
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## This note was uploaded on 05/02/2010 for the course PHYS PHYS 1 taught by Professor Morrison during the Spring '10 term at UCSB.

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lecture05 - Physics 1 7 Apr 2010 Acceleration Acceleration...

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