Kinematics

Serway
Dr LazzatZ
16/02/2022
Chapter 2 Motion in One Dimension
1 Motion in One Dimension | Introduction - 1
2 Motion in One Dimension | Introduction - 2
14 A 50. 0 - g SuperBall traveling at 25. 0 m/s bounces off a brick wall and rebounds at 22. 0 m/s. A high - speed camera records this event. If the ball is in contact with the wall for 3. 50 ms, what is the magnitude of the average acceleration of the ball during this time interval?
Solution
15 A velocity – time graph for an object moving along the x axis is shown in Figure P2. 15. (a) Plot a graph of the acceleration versus time. (b) Determine the average acceleration of the object in the time intervals t = 5. 00 s to t = 15. 0 s and t = 0 to t = 20. 0 s. Solution
18 An object moves along the x axis according to the equation (x = 3. 00t2 −2. 00t + 3. 00) m. Determine (a) the average speed between t = 2. 00 s and t = 3. 00 s, (b) the instantaneous speed at t = 2. 00 s and at t = 3. 00 s, (c) the average acceleration between t = 2. 00 s and
t = 3. 00 s, and (d) the instantaneous acceleration at t = 2. 00 s and t = 3. 00 s. Solution 19 A particle starts from rest and accelerates as shown in Figure. Determine a) the particle’s speed at t=10. 0 s and at t=20. 0 s, and b) the distance traveled in the first 20. 0 s. Solution
1Chapter 3 Vectors
1 Vectors - 1
2 Vectors - 2
Chapter 4 Motion in Two Dimensions
1 Motion in Two Dimensions
7 A fish swimming in a horizontal plane has velocity vi = (4. 00i + 1. 00j) m/s at a point in the ocean whose displacement from a certain rock is ri = (10. 0i + 4. 00j) m. After the fish swims with constant acceleration for 20. 0 s, its velocity is vi = (20. 0i+5. 00j) m/s. (a) What
are the components of the acceleration? (b) What is the direction of the acceleration with respect to the unit vector i? (c) Where is the fish at t = 25. 0 s if it maintains its original acceleration and in what direction is it moving? Template Solutionэссе