PHYS 101 Lecture 3: Review of Linear Kinematics and Dynamics III
21 May 2015
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Phys 101: physics for the life sciences - lecture 3: review of linear. A car is travelling at a constant speed of 30 m/s and it passes a billboard. There is a police officer behind the billboards who starts his/her motorcycle and takes off 1 second after the car passes the billboard. The acceleration of the motorcycle is 3. 0 m/s2. A = 0 m/s2 ti = 0. 0 s tf = unknown. = tf = 20 s (for the car) A = 3. 0 m/s2 ti = 1. 0 s tf = unknown. 20 = t f motorcycle - 1 t f motorcycle = 19 s. I-d motion under the influence of gravity (no air resistance). Acceleration is constant ( we can still use the kinematics formulas) Modified kinematics formulas (where a= g and x =y ): At ymax v=0 m/s you can use this to calculate ymax given vi is some known quantity.
