PHYS 101 Chapter 2 Motion along a straight Line slides 15 - 26 فيزياء 101 جامعة جدة علمي

SCPH 101 Jeddah University شرح منهج الفيزياء 101 لطلبة جامعة جدة علمي شرح شابتر 2 slides 15 - 26 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 ▪ The equations used to describe the motion of a particle with constant acceleration are: Example 5: A particle starts motion at 15 m/s. If it moves 20 m in 2 s, its final velocity is: (A) 10 m/s (B) 5 m/s (C) 3 m/s (D) zero Example 6: A car takes 10 s to accelerate from 0 to 50 m/s with constant acceleration. This acceleration is: (A) 15 m/s2 (B) 9 m/s2 (C) 5 m/s2 (D) 2 m/s2 Example 7: A train changes its velocity from 70 km/h to 20 km/h in 6 s. The distance it covered is: (A) 75.0m (B) 9.87m (C) 15.4m (D) 20.6m Example 8: A car moves along the x-axis with constant speed, the acceleration of the car is: (A) Decreasing (B) Increasing (C) 9.8 m/s2 (D) Zero Free Falling Bodies ▪ Important example of straight line motion with constant acceleration. ▪ Described by constant acceleration equations, but need to make two changes: 1) Replace x by y . 2) Replace a by –g , where g = 9.8 m/s2 Example 9: A ball is thrown vertically upward at a speed of 12 m/s. It will reach its maximum height in: (A) 1.22 s (B) 1.84 s (C) 2.33 s (D) 3.21 s Example 10: A stone is dropped vertically downwards from a height h. If the stone reaches a height of 10 m above the ground in 2 s, the height h is: (A) 4.9 m (B) 9.6 m (C) 19.6m (D) 29.6m Example 11: A boy shot a foot ball vertically up with an initial speed v0. When the ball was 2 m above the ground, the speed was 0.4 of the initial speed. The initial speed is: (A) 11.7 m/s (B) 8.41 m/s (C) 6.83 m/s (D) 4.82 m/s #phys #physics 101 #physics #jeddah #saudiarabia #علمي #scph #فيزياء #جامعة #فيزياء #جدة #السعودية #مصر #السعودية #education #exam #learning #quiz #class #modelanswer #testbank #question #generalphysics #physics102 #ibrahimsoltan #ابراهيم_سلطان