Answered

Westonci.ca is your go-to source for answers, with a community ready to provide accurate and timely information. Explore thousands of questions and answers from a knowledgeable community of experts on our user-friendly platform. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

. A driver notices an upcoming speed limit change from 45 mi/h (20 m/s) to 25 mi/h (11 m/s). If she estimates the speed limit will change in 50 m. a) Sketch the scenario listing given information. b) Use the time independent kinematic equation v(final)^2 = v(initial)^2 + 2 a s to determine the acceleration needed to reach the new speed limit before it begins? c) Is your result for acceleration a positive or negative value and does it represent speeding up or slowing down? *
15 points

Sagot :

pstnonsonjoku

The acceleration is -2.79 ms-2 hence the vehicle is slowing down.

What is kinematics?

Kinematics refer to the study of motion without recourse to the cause of motion which is force. Here we depend entirely on the equations of motion.

Given;

v = 11 m/s

u = 20 m/s

a = ?

s = 50 m

Hence;

v^2 = u^2 + 2as

a = v^2 - u^2/2s

a = (11)^2 - (20)^2/2 × 50

a = 121 - 400/100

a = -2.79 ms-2

Learn more about acceleration: https://brainly.com/question/2437624

Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. We appreciate your visit. Our platform is always here to offer accurate and reliable answers. Return anytime. Find reliable answers at Westonci.ca. Visit us again for the latest updates and expert advice.