Shown below is a graph of velocity-versus-time for a moving object. What is the acceleration of the object at t = 1.5 s? ½ (m/s) 3 A 1- B F t (s) 10 1 2 3 4 5 7 8 -1- E -2- D -3- O -1.0 m/s2 2.0 m/s2 1.0 m/s2 O o m/s2 -2.0 m/s2 4.0 m/s2 2.
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- A student writes, "A bird that is diving for prey has a speed of -10 m / s." What is wrong with the student's statement? What has the student actually described? Explain.& Snipping Tool O X File Edit Tools Help New Mode Delay - A baseball player throws a ball straight up into the air. At a height of 4.4 m above the release point, the ball is moving at 1.8 m/s. What was the ball's initial speed in m/s? assume g = 9.8m/s?. Answer: 9:41 PM O Type here to search 日 amazon 10°C G ENG 2021-10-17 %2:An object is dropped from a tower, 153 ft above the ground. The object's height above ground t sec into the fall is s = 153 - 16t2. a. What is the object's velocity, speed, and acceleration at time t? b. About how long does it take the object to hit the ground? c. What is the object's velocity at the moment of impact? The object's velocity at time t is The object's speed at time t is ft / sec. The object's acceleration at time t is | ft/ sec2. (Simplify your answer.) It takes |sec for the object to hit the ground. (Round to the nearest tenth.) The object's velocity at the moment of impact is ft / sec. (Round to the nearest tenth.)
- 1. Below is a velocity-time graph of a marathon runner running down a racetrack over a period of 8 seconds. v (m-s-1) t(s) A. Solve for the acceleration of the runner during the first 4 seconds.D openvellum.ecollege.com/course.html?courseld%3D17139499&OpenVellumHMACE29)02ACIOTUTU Compute the average acceleration during the time interval t = 0 to t = 10s. Express your answer using two significant figures. The figure (Figure 1) shows the velocity of a solar- powered motorhome (RV) as a function of time. The driver accelerates from a stop sign, cruises for 20 s at a constant speed of 60 km/h, and then brakes to come to a stop 40 s after leaving the stop sign. aav Submit Request Answer Part B Compute the average acceleration during the time interval t = 30s to t = 40s. Express your answer using two significant figures. aay = Figure 1 of 1 (31 of 1 > Submit Request Answer U (km/h) 09 Part C 50 40 Compute the average acceleration during the time interval t = 10s to t = 30s. 30 Express your answer using two significant figures. 20 1. 5 10 15 20 25 30 35 40 (s) 1 - Aav IIes/107664/assignments/2898276 Skype | Communi... CB Practice Test -.. d... Introduction to Cri.. MIX Attempt, Conspira.. 021.pdf Page < 16. Draw a qualitative position-time graph that shows a man who starts at the origin, then runs forward with constant speed, then stands still for 5 seconds, and finally walks back toward the origin at a slower constant speed. Now, draw a qualitative velocity-time graph of this motion. (remember a qualitative graph has no numbers.) Label all axes of your graph. Based on the graph, answer questions 17 and 18: Position (m) vs. Time (s)
- If an object is dropped from a 196-foot-high building, its position (in feet above the ground) is given by s(t)= - 16t² + 196, where t is the time in seconds since it was dropped. a. What is its velocity 1 second after being dropped? b. When will it hit the ground? c. What is its velocity upon impact?An object is dropped from a tower, 171 ft above the ground. The object's height above ground t sec into the fall is s=171-16t2². a. What is the object's velocity, speed, and acceleration at time t? b. About how long does it take the object to hit the ground? c. What is the object's velocity at the moment of impact? The object's velocity at time t is The object's speed at time t is The object's acceleration at time t is ft/sec² (Simplify your answer.) ft/sec. It takes sec for the object to hit the ground. (Round to the nearest tenth.) The object's velocity at the moment of impact is (Round to the nearest tenth.) ft/sec. (10The velocity-time graph that describes the velocity of an object with time is given as in the figure below. if the values of a= 98.5, b=124.6 and c=57, Find the displacement made by the object in the first hour. v(km/h) b. a t(h) 0.5 1.0 1.5 2.0 Select one: A. 118.1 OB. 175.1 OC 398.4 OD. 139.6 OE 142.7 choice
- Name: 22. The following data show the position of an object as a function of time. Time Position (cm) (s) 0 0 1 3 2 11 3 4 5 254974 26 a Graph the data d. Make the new graph. FORBRIZAL e Determine the 96 80- 170 60 slope of the line of best fit. 50 40- 130- 20- b. What type of graph is this? lineur c. What should you graph to create a linear graph? to- 1 2 3 4 5 Time Page 7 of 10 ACL: SPH4U Introduction f. Write an exact equation to represent the relationship between position and time for this object.A physics student took a 4 hours car trip to visit a friend. In the first hour, he traveled 100 km at constant speed. In the two hours, he stopped after his car developed some trouble. In the last hour, he traveled 90 km.What was his average speed during a. first hour b. the last two hours c. the entire trip?George walks to a friend’s house. He walks 750 meters North, then realizes he walked too far. He turns around and walks 250 meters South. The entire walk takes him 13 seconds. What is his velocity in meters per second? Also, is the acceleration due to gravity negative or positive or it depends? I'm really confused. Please help and explain in an easy to understand.