Answer the following table by briefly describing the motion graphs. Tell something about the acceleration, whether it is speeding up or slowing down. 1. 90 80 70 60 50 40 30 20 10 1 2 3 4 5 6 7 Time (s) 2. 100 90 80 70 60 50 40 30 20 10 12 3 4 5 6 7 Time (s) Speed (km/h) Speed (km/h)
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- A train is traveling at a velocity of 85 feet per second when it hits its brakes. It slows down at a constant rate of 0.8 feet per second each second until it stops. DO NOT ROUND YOUR ANSWERS. 1) How long will it take the train to stop? Answer in decimal form. 2) After it hits its brakes, how many feet will it travel before it stops? Answer in decimal form.A person drops a rock from the edge of a cliff that is 1350 ft high. The initial acceleration is a=−32 ft/sec^2. 1. What is the velocity equation? Use t as the variable and v for the velocity. 2. What is the displacement equation? Use t as the variable and s as the displacement. 3.What time did it hit the ground? (Hint: s=0) 4. What was the velocity just before impact?Answer the following questions: 1. While on vacation, Lisa Carr traveled a total distance of 440 miles. Her trip took 8 hours. What was her average speed?2. What is the distance and the displacement of the race car drivers in the Indy 500?3. What is the displacement of the cross-country team if they begin at the school, run 10 miles and finish back at the school?4. A car accelerates from rest to a speed of 36 km/h in 20 seconds. What is the acceleration of the car in m/s2?5. A car slows down from a speed of 72 km/h to rest in 25 seconds. What is the acceleration of the car?
- During 55 successive 1.001.00 min intervals, a runner moves at the following constant speeds: 0.4000.400 km/min, 0.2000.200 km/min, 0.1100.110 km/min, 0.1100.110 km/min, and 0.3600.360 km/min. a.) Find the total distance traveled. b.) Find the average speed.y-axis. In velocity, speed-time graph is used by plotting time on the x-axis and speed on the y-axis. acceleration, velocity-time graph is used by plotting time on the x-axis and velocity on the y-axis. 1. The graph below shows the speed-time motion of a car for the first 40 seconds. 25 Speed (m/s) 20 15 10 10 20 36 40 time (s) a. Calculate the average velocity of the car during the first 10 seconds of the journey. b. Find the total distance traveled by the car in the first 40 seconds.1.hour check the reasonableness of our answer, we see that it took a total time of 30 minutes (½ hour) to go 6 miles, which checks with 12 miles in one hour (double the time at the same speed). 2. To qualify for the marines, a male recruit must complete a mile and a half run in less than 13 minutes and 30 seconds. What is the recruit’s speed in average m/s for this time? 1 mile = 1.609 km Knowns (or Givens) 3. You are in Amsterdam driving a rental car. When you pull into a gas station, you notice that the pump measures volume in liters rather than our gallons here in the states. The currency is also in Euros. The going rate for the gasoline is €185/L. (euros/liter). What price are you paying in $/gallon to fill up your rental car in Amsterdam? € 1.00 = $ 1.21 US and 1 Liter = 0.2641 gal. 4. A jet is flying due south at a constant speed of 460 miles per hour. It is flying with a direct south tailwind of 75 miles per hour that adds to the jet’s groundspeed. How many…
- Problem Solving. Do not round off in your calculations. Round off to 2 DECIMAL PLACES in your final answers only. Units will be provided on every problem, type only the magnitude. DO NOT TYPE ANY UNITS IN YOUR ANSWERS. A race car starts from rest and travels east along a straight and level track. For the first 5.0 s of the car's motion, the eastward component of the car's velocity is given by: v() = (0.86) What is the acceleration of the car when vx=12.0 m/s? Answer in m/s^2. Back Next Page 3 of 5 Never submit passwords through Google Forms.Please solve the 2 problems. 1. A ball rolling at a rate of 2km/hr was brought to stop in 10 seconds. Find its acceleration. Express youf answer in m/s². 2. If a person can run a distance of 20 km in three hours, what is the person's velocity. Express your answer in m/s.1. A sprinter at a track and Field event is entered in a 500 m race. The starting gun goes off, accelerating every step of the way, he runs the distance of 63.50 seconds. What is the acceleration of the sprinter in units of meters per second squared? How fast is he going as he crosses the finish line in units of meters per second? write the general form of the equation you are going use. list all given values, units, and variables they represent. solve the equation.
- A ball is thrown from the top of a building and falls to the ground below. Its path is determine by the equation h=-4t square + 36t + 40, where h is the height above the ground in meters and t is the elapsed time in seconds. Determine: a. The maximum height the ball reaches and the time it takes to reach maximum height by using the method of completing the square. Keep in fraction form. b. Determine when the ball hits the ground. c. What is the height of the building.An object is held 10 m above the ground. It is tossed upward at 5 m/s. Describe the object's motion in words. Write an equation of motion for the object. How long does it take for the object to hit the ground? How far above the ground is the object in 1.5 sec?A stone is thrown straight up from the edge of a reof, 675 feet above the ground, at a speed of 18 feet SEOne per second. A. Remembering that the acceleration due to gravity is -32 feet pET second squared, how high is the stone 2 seconds later? Don't forget to enter the correct units. B.At what time does the stone hit the ground C. What is the velocity of the stone when it hits the ground?