College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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What is the velocity?
Distance: 70 cm
Time: 0.0250 s
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- A caterpillar's speed decreases from 0.45cm/s to 0.20cm/s at a rate of -0.05cm/s2 as it climbs a leaf. How quickly does the caterpillar undergo metamorphosis?arrow_forward3) division is one unit. An object's (one dimensional) motion is represented by the following graph. Each x (meters) (4.5. 3) (6, 1.5) (0,0) t (s) (3,-1) a) Find the velocity of the object at t = 2.2 s. a) mag. dir. b) Find the position of the object at t = 4.3 s. b) mag. dir. c) What is the total distance traveled for the entire 6 second journey? c) d) What is the average velocity from t = 1.5 s to t= 4.5 s ? e) What is the average speed d) mag. dir. from t = 4 s to t= 6 s ?arrow_forward24: Module 4 6. Assignment Booklet 4A A 4. Michael used a stopwatch to time his remote-controlled car over a 6-m distance. The car took 1.5 s. What was the car's average speed? A. 2 m/s 5. 3 m/s C. 4 m/s D. 5 m/s 5. The velocity is time is halved. when the distance is kept the same and the Return to page 35 of the Student Module Booklet and begin Lesson 2 For questions 6 to 15, read each question carefully. Decide which of the choices BE completes the statement or answers the question. Place your answer in the blank space given. Use the following graph to answer questions 6 to 9. Distance/Time Graph for Four Objects Object B Object A 4 Object C Distance (cm) 1.arrow_forward
- Imagine a toy car on a track with two hills (see Figure 1). As the car rolls down the track, its velocity is measured and recorded in the graph below (Figure 2). Comment on the efficiency of this energy transformation. If the transformation is less than 100% efficient, propose a reason why. [3] Hill 1 Hill 2 Hill 3 1001 Speed = 0.0 cm/s Time = 0.0 s 80 60 40 20 (cm) 40 80 120 160 200 240 280 320 360 400 440 480 Figure 1. Toy car on a track. y (cm/s)arrow_forwardI need help with this questionarrow_forwardInitial position was set at 0m, initial velocity=3.00m/s and acceleration= -1.00 m/s^2 After 6.00 seconds the velocity was at -3.00m/s and displacement= 0m a. What is the distance traveled in 6.00s b. What is the displacement after 6.00sarrow_forward
- 8) What is the slope of this velocity-time graph? Use appropriate units. Velocity (m/s) 25 20 15 5 s, 25 m/s -0 s, 5 m/s 0 1 2 3 4 5 Time (s)arrow_forwardA person walks along the path shown below from point A to point B. What is the displacement from point A to point B? O 4 units 10 units 3.16 unitsarrow_forwardThanksarrow_forward
- This is a graph of velocity vs time, what can we say about the speed of the object?arrow_forwardT:3.5 9) The elevators in the Landmark Tower, in Yokohama, Japan are among the fastest in the world. They accelerate upward at 3.125 m/s? for 4.0 s to reach their final speed. If these elevators start from rest, what is their final speed? 3175 mis?arrow_forwardWhat is the difference between speed and velocity? O A) Velocity contains information about the direction of motion while speed does not. B) Speed is measured in mph, while velocity is measured in m/s. The concept of speed applies only to objects that are neither speeding up nor slowing down, while velocity applies to every kind of motion. Speed is used to measure how fast an object is moving in a straight line, while velocity is used for objects moving along curved paths. D) E) Speed is an average quantity while velocity is not.arrow_forward
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