2. A blue cart is initially stationary. A red cart starts out behind the blue cart moving quickly on a parallel track, but is slowing down at a constant rate of 0.30 m/s². The red cart is moving at a speed of 2.80 m/s at the moment it passes the blue cart. At that same moment the blue cart begins to speed up at a constant rate of 0.40 m/s². a) How much time passes before the blue cart catches up with the red cart again? b) How far have the carts traveled from when the red cart passes the blue cart until the blue cart catches up? c) At what time do the carts have the same velocity? Where is each cart at this time?
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- 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 THANKS2. You decide to enjoy the lovely Santa Barbara weather by taking a ride in your car along the coast. (a) Driving on 101, you pass by an accident. How far does your car travel forward during the 1 second that you take to look at the accident on the side of the road, if you're going with 100 km/h? (b) Then, you drive up a hill at a constant speed of 40 km/h and return down the hill at a speed of 60 km/h. What is the average speed for the round trip?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?
- You start out by driving 82 miles north in 4 hours and 36 minutes, and then you stop and park for a while. Finally you drive another 60 miles south in 3 hours and 11 minutes. The average velocity for your entire trip was 2.26 miles per hour to the north. How much time did you spend parked?1 hour 56 minutes 3 hours 53 minutes 0 hours 58 minutes 9 hours 43 minu1. Consider a car that initially travels in the positive direction at a speed of 30 m/s. The car uniformly speeds up to 40 m/s in a time of 5 s. Find the following: a. The acceleration of the car. b. The distance traveled over the entire 5.0 seconds. C. The distance traveled during the 2 s interval where the clock goes from t = 2 s, to t= 4 s. (Assume the 5 s time interval begins with the time = 0s.)B3
- Q1.An electron, in a picture tube of a TV set, travelling in a straight line, accelerates uniformly from speed 4.3x10^4 to 9.0x10^6 m/s along a lenght of 2.3 cm. (15) a. How much time does the electron spend in this 2 cm region? b. What is the magnitude of the electron's acceleration?2 2. A ball is thrown upward from the top of a 6 feet tall platform. The ball is 30 feet off the ground after 1 second and 22 feet off the ground after 2 seconds. The height h above ground is a quadratic function of the time t after the ball is thrown. a) What is the equation that fits this model? b) How long after the ball is thrown will it reach its maximum height? 2 decimals c) What is the maximum height the ball reaches? Answer Answer AnswerA stone is thrown straight up from the edge of a roof, 650650 feet above the ground, at a speed of 1616 feet per second.A. Remembering that the acceleration due to gravity is −32ft/sec2−32ft/sec2, how high is the stone 55 seconds later?B. At what time does the stone hit the ground?C. What is the velocity of the stone when it hits the ground?
- 4. A computer animator is trying to make an animation of a rabbit rushing back and forth along a sidewalk. He decides to model the rabbit's velocity over time as shown in the following graph, where time is measured in seconds and velocity is measured in meters per second. velocity 3 2 1 777749 -24 -4 -5 3 4 8 9 time 10 (Here, positive velocities indicate that the rabbit is heading east; negative velocities indicate that the rabbit is heading west.) (a) Suppose the rabbit starts at a position we'll call 0. Sketch a rough graph of the rabbit's position as a function of time on the interval [0, 10]. We do not expect your graph to be perfect, but it should accurately show whether the graph is increasing or decreasing and whether it is concave up or concave down. (b) At time 0, there was a squirrel sitting 2 meters east of the rabbit. Suppose that the squirrel's velocity on [0, 10] is given by the same graph shown above. On your graph from (a), also sketch the squirrel's position as a…1. The acceleration of a car is given by a(t) = A – Bt + Ct² , where A = 1.0 m/s², B = 0.5 m/s³, C = 2.0 m/s“. The car is at rest at the origin at time t= 0. Find its position and velocity as a function of time. b. Sketch its position, velocity, and acceleration. a.A circular racetrack has a distance of 755 m. A racer is currently driving her car on the racetrack. As she starts the car from rest, it begins to accelerate to a speed of 120 kph in 9 s. a. Determine the magnitude of the total acceleration of the car, 4 s after the car begins to increase its speed. b. If she maintains the speed of the car to be 120 kph, determine the magnitude of the total acceleration of the car after 5s. c. Upon accelerating to 120 kph, will the car pass its starting point? Prove using kinematic equations.