3. The Shanghai maglev train connects Longyang Road to Pudong International Airport, a distance of 30 km. The journey takes 8 minutes on average. What is the maglev train's average velocity?
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- A car travels around a circle at a constant speed of 20.0 m/s. A magnetic compass in the car indicates that it's direction of travel changes from North to northeast in 4.00 seconds. A. Find the change in the cars velocity during this interval. B. Determine the average acceleration.Ex. 2. A car driver in northern Ontario makes the following displacements: Ad₁= 15.0 km [W 30.0°N] Ad2 = 10.0 km [W 75.0°N] Ad3= 10.0 km [E 70.0° N] The trip takes 0.50 h. Calculate the average velocity of the car and driver in km/h.Page 5 of 8 5. As I drive on a back-country road, I suddenly see a deer "frozen" in the headlights. I was driving at 11.4 m/s, but immediately apply the brakes and slow with an acceleration of 3.80 ". a. If the deer was 20.0 m from my vehicle when the brakes were applied, how close did I come to hitting the deer? b. How much time was needed for my vehicle to stop?
- 1. A train leaves the station on a 50 km commute. The train must make a 60-second stopevery 1.0 km to pick up and drop off passengers. The train accelerates at 2.0 m/s2, then cruises at90 km/h, and then decelerates at 5.0 m/s2 between stops.(a.} How many stops does the train make?(b.} How long does it take for the train to get from one stop to the next?(c.} What is the total time for the entire commute?The distance from poplar bluff to Columbia is approximately 250 miles. If you take 4 hours to drive from poplar bluff to Columbia what is your average speed? If you take 6 hours to return from Columbia to poplar bluff what is your average speed? What is the average speed of the whole trip?One afternoon, a student was going home after attending a calculus class. For this reason, the student orders an online motorcycle taxi through the application. At the time of ordering, the online motorcycle taxi is in the position s = 2t² + 2t+4, where t is in units of time and s is in meters. a. Determine the average speed of the online motorcycle taxi at intervals of 3 minutes to 5 minutes. b. Determine the time when the instantaneous speed of the online motorcycle taxi is exactly the same as the average speed. NEED IN RUSH THANKS
- C. Solve the complete solution (given, unknown, formula, solution) for the following problemsA high-performance sports car can go from 0 to 100 mph (44.7 m/s) in 7.9s. a) What is the car's average acceleration? b) The same car can come to a complete stop from 30 m/s in about 3.2 s. What is its average acceleration?3. A ball is thrown upwards at 13.0 m/s toward the ceiling located 6 m above the point where you release the ball. Air resistance is negligible. Objects falling near the earth's surface with no forces acting except gravity have a downwards acceleration of magnitude g. For this problem use g = 10 m/s². Write any equation you use in symbolic form before substituting in numbers. Make a labeled picture with symbols and all relevant values. Put a coordinate system on the a. picture by indicating the location of the origin and position direction. b. Find the time taken to reach the ceiling. Find the velocity just before the ball touches the ceiling. C.
- 15. Abby is chasing Bradley due north along Warden Avenue at a speed of 7 m/s. She is 47 meters south of the Tim Hortons while Bradley makes a turn to run westward at a speed of 9 m/s. What is the minimal distance between them and how many seconds after Bradley makes a turn would it happen?5. A car is traveling at 95.0 km/hr. The driver steps on the brakes and the car comes to a stop in 60.0 m. What is the car's deceleration?1. Jack drives a distance of 160 miles at an average speed of 35 miles/hr, followed by a distance of 190 miles at 75 miles/hr. What is his average speed over the 350-mile trip? Hint: Draw a labeled sketch of the trip. V avg miles per hour