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Problem 3:  A car moves on a straight road such that its position from a reference point is given by the following function: { x(t) = 3 + 5t + 2t2 + 0.4t3, y(t) = 0, z(t) = 0 } where t is in seconds and x in meters.  can you help with parts b-e?

Problem 3:  A car moves on a straight road such that its position from a reference point is given by the following function: { x(t) = 3 + 5t + 2t2 + 0.4t3, y(t) = 0, z(t) = 0 } where t is in seconds and x in meters.  can you help with parts b-e?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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(17%)  Problem 3:  A car moves on a straight road such that its position from a reference point is given by the following function:

{ x(t) = 3 + 5t + 2t2 + 0.4t3, y(t) = 0, z(t) = 0 }

where t is in seconds and x in meters. 

can you help with parts b-e?

Class Management I Help Homework Week 2 Begin Date: 1/17/2022 12:01:00 AM -- Due Date: 1/27/2022 11:59:00 PM End Date: 5/6/2022 11:59:00 PM (17%) Problem 3: A car moves on a straight road such that its position from a reference point is given by the following function: { x(t) = 3 + 5t + 2? + 0.4, y(t) = 0, z(t) = 0 } where t is in seconds and x in meters. 20% Part (a) True or False: the acceleration of the car is constant? False V Correct! > * 20% Part (b) Find the acceleration, in meters per square second, in the x-direction at t1 = 0.35 sec. Grade Summary a(t1) = 5.01| Deductions 0% Potential 100% sin() cos() tan() 7 8. 9 HOME Submissions cotan() asin() E 1^A 4 5 6. Attempts remaining: (0% per attempt) acos() atan() acotan() sinh() 1 2 3 detailed view cosh() Degrees tanh() cotanh() END - 1 0% Radians Vol BACKSPACE CLEAR DEL Submit Hint Feedback I give up! Hints: 1 for a 0% deduction. Hints remaining: 0 Feedback: 0% deduction per feedback. |-The acceleration is the second time derivative of the displacement. A 20% Part (c) Find the acceleration, in meters per square second, in the x-direction at t = 1.35 sec. A 20% Part (d) Find the average velocity, in meters per second, in the x-direction between t = 0.35 s and t2 = 1.35 s. A 20% Part (e) Find the average acceleration, in meters per second squared, in the x-direction between t = 0.35 s and t2 = 1.35 s.
Transcribed Image Text:Class Management I Help Homework Week 2 Begin Date: 1/17/2022 12:01:00 AM -- Due Date: 1/27/2022 11:59:00 PM End Date: 5/6/2022 11:59:00 PM (17%) Problem 3: A car moves on a straight road such that its position from a reference point is given by the following function: { x(t) = 3 + 5t + 2? + 0.4, y(t) = 0, z(t) = 0 } where t is in seconds and x in meters. 20% Part (a) True or False: the acceleration of the car is constant? False V Correct! > * 20% Part (b) Find the acceleration, in meters per square second, in the x-direction at t1 = 0.35 sec. Grade Summary a(t1) = 5.01| Deductions 0% Potential 100% sin() cos() tan() 7 8. 9 HOME Submissions cotan() asin() E 1^A 4 5 6. Attempts remaining: (0% per attempt) acos() atan() acotan() sinh() 1 2 3 detailed view cosh() Degrees tanh() cotanh() END - 1 0% Radians Vol BACKSPACE CLEAR DEL Submit Hint Feedback I give up! Hints: 1 for a 0% deduction. Hints remaining: 0 Feedback: 0% deduction per feedback. |-The acceleration is the second time derivative of the displacement. A 20% Part (c) Find the acceleration, in meters per square second, in the x-direction at t = 1.35 sec. A 20% Part (d) Find the average velocity, in meters per second, in the x-direction between t = 0.35 s and t2 = 1.35 s. A 20% Part (e) Find the average acceleration, in meters per second squared, in the x-direction between t = 0.35 s and t2 = 1.35 s.
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