Velocity vs. Time Graph Attempt #1 v (m/s) 12 8 0 0 2 4 What is the change in velocity in section a? What is the change in velocity in section c? Find the acceleration in section c Find the acceleration in section d Find the Distance Traveled in section b Find the Distance Traveled in section a b 6 8 t (s) C 10 a= 12 d 14 12 m/s -12 m/s 1. In what section is the object accelerating from rest? 2. In what section is the object decelerating? 12 mls-0 mls= 12 m/s 3. What is the object moving at constant velocity? = Omis C b

Figure below is a velocity-versus-time graph for a moving object. The object starts at position x = 0. What is the acceleration at t= 1.0 s, in m/s2? Your answer needs to have 3 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement. time in seconds

Sketch the position-time graph corresponding to each of the following descrip- tions of the motion of an object. 9. The object moveės with a steady (constant) velocity away from the origin. Time 10. The object is standing still. Time 11. The object moves with a steady (constant) velocity toward the origin for 5 s and then stands still for 5 s. Time 12. The object moves with a steady velocity away from the origin for 5 s, then reverses direction and moves at the same speed toward the origin for 5 s. Time 13. The object moves away from the origin, starting slowly and speeding up. Time Position Position Position Position uonjsod

Describe the motion graphs below. Answer the questions that follow. A car is traveling at different velocity and time. The velocity of the car is plotted against time Answer the questions below. 80 60 Velocity m/s 40 20 T/s 10 20 30 40 50 1. Between Os to 10s, describe the acceleration of the car. 2At what time did the car have a constant velocity? 3. Between 30 s to 50 s, describe the acceleration of the car. 4. Based on the motion graph, is the car accelerating? Why?

Please only tapy answer

Study this velocity-time graph. Choose from the following descriptions of motion: the object is moving at a constant velocity; the object is speeding up in the positive or negative direction; the object is slowing down in the positive or negative direction; the object moves towards origin; the object is changing direction. Question1. Describe the motion from initial velocity to A Question 2 Describe the motion from A to B Question 3. Describe the motion from B to C veloctity (m/s) 20 15 1 20 23 time (s) C

Short computation The position of an object as a function of time is given by x(t) = bt2 - ct, where b = 2.2 m/s² and c = 7.1 m/s. What is the instantaneous velocity v of the object when t = 7.9 s? v= m/s Remember to include a "-" if the velocity turns out to be negative. Do not include a "+" for a positive value. Report your numerical answer below, assuming three significant figures.

Constants You are driving home from school steadily at 94 km/h for 190 km. It then begins to rain and you slow to 61 km/h instantly. You arrive home after driving 5.0 hours. Part A How far is your hometown from school? Express your answer using two significant figures. ΑΣφ ? d = km Submit Request Answer Part B What was your average speed? Express your answer using two significant figures. ΑΣφ ? v = km/h Submit Request Answer Provide Feedback Next > P Pearson