Concept explainers
Three start-ups Three cars. A, B, and C, start from rest and accelerate along a line according to the following velocity functions:
- a. Which car travels farthest on the interval 0 ≤ t ≤ 1?
- b. Which car travels farthest on the interval 0 ≤ t ≤ 5?
- c. Find the position functions for each car assuming that each car starts at the origin.
- d. Which car ultimately gains the lead and remains in front?
Want to see the full answer?
Check out a sample textbook solutionChapter 7 Solutions
Calculus: Early Transcendentals (2nd Edition)
Additional Math Textbook Solutions
Calculus, Single Variable: Early Transcendentals (3rd Edition)
Thomas' Calculus: Early Transcendentals (14th Edition)
Precalculus (10th Edition)
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (4th Edition)
Precalculus
- A Skydiver When a skydiver jumps from an airplane, his downward velocity, in feet per second, before he opens his parachute, is given by v=1761-0.834t, where t is the number of seconds that have elapsed since he jumped from the airplane. What is the velocity after 5 seconds?arrow_forwardbThe average rate of change of the linear function f(x)=3x+5 between any two points is ________.arrow_forwardAn object of mass m is dropped from a helicopter. Assuming that air resistance is proportional to velocity, the velocity v of the object satisfies v=8. Find velocity as a function of time. m dv the equation atarrow_forward
- Find the maximum rate of change of f at the given point and the direction in which it occurs.arrow_forwardThe displacement of a particle is given by s-4t-6612 +113t-41 wheres is in feet and t is in seconds. Plot the displacement, velocity, and acceleration as functions of time for the first 13 seconds of motion. After you have made the plots, answer the questions. Questions: Att -2.9 sec, Att - 6 sec, S- Att 9.8 sec, S- i The velocity is zero when t- ft. vi ft, v- i ft. v- sec and when t- ft/sec, a i ft/sec, a i ft/sec, a i sec ft/sec² ft/sec ft/secarrow_forwardThe equation of motion of a particle is s = t-5t, where s is in meters and t is in seconds. Assuming that t 2 0, answer the following questions. 1. Find the velocity v as a function of t. Answer v(t) = 2. Find the acceleration a as a function of t. Answer: a(t) 3. Find the acceleration after 2 seconds. Answer (in m/s) a(2) =| 4. Find the acceleration when the velocity is 0. Answer (in m/s), a =|arrow_forward
- A rocket is fired vertically upward from the ground. The distance s in feet that the rocket travels from the ground after t seconds is given by s(t) = −16t2 + 560t. a. Find the velocity of the rocket 3 seconds after being b. Find the acceleration of the rocket 3 seconds after beingarrow_forwardA wind is blowing giving the projectile the acceleration of 9m/s2 in the positive direction of the y-axis. Assuming that the gravity is 9.5m/s2, write the acceleration of the projectile at any time t. a(t)= BSP;+ OOP.arrow_forwardA plane begins its takeoff at 2:00 p.m. on a 1830-mile flight. After 4.2 hours, the plane arrives at its destination. Explain why there are at least two times during the flight when the speed of the plane is 300 miles per hour. STEP 1: Let S(t) be the position of the plane. Let t = 0 correspond to 2 p.m., and fill in the following values. S(0) S = = 1830 STEP 2: The Mean Value Theorem says that there exists a time to, 1830 S '(t) = v(to) -0 < to = I such that the following is true. (Round your answer to two decimal places.) STEP 3: Now v(0) = and v(4.2) = and since v(t)= I we have 0 < 300 ≤ v(tỏ). Thus, we can apply the Intermediate Value Theorem to the velocity function on the intervals [0, to] and [to, to see that there are at least two times during the flight when the speed was 300 miles per hour. ]arrow_forward
- Algebra: Structure And Method, Book 1AlgebraISBN:9780395977224Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. ColePublisher:McDougal LittellAlgebra and Trigonometry (MindTap Course List)AlgebraISBN:9781305071742Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage LearningFunctions and Change: A Modeling Approach to Coll...AlgebraISBN:9781337111348Author:Bruce Crauder, Benny Evans, Alan NoellPublisher:Cengage Learning
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage