PHYS 101 Chapter 2 Motion along a straight Line slides 1 - 14 فيزياء 101 جامعة جدة علمي

SCPH 101 Jeddah University شرح منهج الفيزياء 101 لطلبة جامعة جدة علمي شرح شابتر 2 slides 1 - 14 لشرح المنهج كاملا و تدريبات علي كل شابتر يرجي التواصل علي رقم الواتس 0556402306 Motion along a Straight Line ▪ Displacement, Time, and Average Velocity ▪ Instantaneous Velocity ▪ Average and Instantaneous Acceleration ▪ Motion with Constant Acceleration ▪ Free Falling Bodies Motion along a Straight Line ▪ Displacement, Time, and Average Velocity ▪ Instantaneous Velocity ▪ Average and Instantaneous Acceleration ▪ Motion with Constant Acceleration ▪ Free Falling Bodies Position ▪ The position of a particle locates the particle with respect to the origin. ▪ The simple for position is x ▪ It has a unit of m Displacement ▪ The displacement of a particle is the change in its position. ▪ The simple for displacement is Δx ▪ It can be expressed as: ▪ It has a unit of m Average Velocity ▪ The average velocity for a particle moves from one position to another during a time interval is: ▪ It depends on original and final positions not on the actual distance. ▪ Its has a unit of m/s Average Speed ▪ The average speed for a particle depends on the total distance that it moves during a time interval as ▪ Its has a unit of m/s Example 1: A bicycle travels 12 km in 90 min. Its average speed is: (A)8 km/h (B)18 km/h (C) 28 km/h (D)48 km/h ▪ Instantaneous velocity for a particle is given by ▪ Instantaneous speed is the magnitude of instantaneous velocity. ▪ Both has a unit of m/s Example 2: The position of a particle moving on an x axis is given by x = 4 + 7 t – t 2, with x in (m) and t in (s). The velocity at 3 s is: (A)4 m/s (B)2 m/s (C) 1 m/s (D)0.4 m/s Average Acceleration ▪ Average acceleration for a particle is the change in velocity during a time interval as follows: ▪ It has a unit of m/s2 Example 3: A car uniformly changes its speed from 20 m/s to 5 m/s in 5 s. The average acceleration is: (A)9 m/s2 (B) -3 m/s2 (C) 4 m/s2 (D)-6 m/s2 Instantaneous Acceleration ▪ Instantaneous acceleration for a particle is the first time derivative of velocity v(t) and the second time derivative of position x(t): ▪ It has a unit of m/s2 Example 4: The velocity of a train is given by v(t)=98 – 3t, (where t in seconds and v is in m/s), has an acceleration of: (A)2 m/s2 (B) -3 m/s2 (C) 98 m/s2 (D)0.3 m/s2 #phys #physics 101 #physics #jeddah #علمي #scph #Physics102 #جامعة #فيزياء #education #class #quiz #exam #exercise #تجميعات #learning #السعودية #ابراهيم_سلطان #ibrahimsoltan لشرح المنهج كاملا و تدريبات علي كل شابتر يرجي التواصل علي رقم الواتس 0556402306