If the acceleration of an object is zero, its velocity is necessarily zero as well. (Try to think of real world examples for and against this statement to help you think it through) O True O False

Please answer the following question on Related Rates-Angle of Elevation, including the knowns/unknowns, appropriate diagram and concluding statement: Jane is climbing up a ladder that is 17 feet long and resting against a vertical wall.  Her friend Sue is chasing her and in an effort to slow Jane down, she begins pulling the bottom of the ladder away from the wall at a speed of 2 ft/s. How fast is the angle between the ladder and the ground changing at 4 s?

Please look at the picture to determine the answers.  Question A: An object travels with the velocity function shown on the left. At t = 0, which of the following best describes the motion of the object?         1. moving in the positive direction and speeding up         2. Moving in the positive direction and slowing down         3. moving in the negative direction and speeding up         4. Moving in the negative direction and slowing down         5. Not moving  Question B: What is the object's acceleration at t = 2 s?           1. 0 m/s^2          2. 2 m/s^2          3. -2 m/s^2          4. 4 m/s^2 Question C: What is the object's velocity at t = 6 s ?            1. 0 m/s            2. 1 m/s            3. -1 m/s            4. 6 m/s Question D: What is the object's displacement from t = 0 s to t = 6s?             1. 9 m            2. 1 m            3. -1 m            4. It can not be determined from the given information    Please answer all of the questions

A projectile is fired with a an initial velocity of 210 m/s at an angle of 40° with respect to the horizontal. How long does it take the projectile to reach its maximum height? What maximum height does the projectile reach? What is the Range of the projectile in kilometers? km Submit Answer View Previous Question Question 14 of 15 View Next Question Home My Assignments Request Extension Copyright © 1998 - 2021 Cengage Learning, Inc. All Rights Reserved TERMS OF USE PRIVACY 1,561 OCT ?? TO 53 MacBook Air