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The velocity of a car is given by V(t) = 5t(1 - $), where units of...
A particle's velocity is given by v(t) = 21 + cos(5t). Find the following. (3 pts. each) A) The position function for the particle if its position is 5 when t = 0. B) The acceleration of the particle at I =*
Physies Midterm One-Dimensional Motion A car is traveling with negative velocity and has a negtive accelenstion Which of the following statements best describes the motion of the car? A. the car is slowing down B. the car is speeding up C. this is an impossible scenario D. the car is decelerating 14. A car changes its velocity from O m's to a final velacity v. Which of te following words is used to describe chane in velocity with respect to...
the velocity of a particle is given by v=[16t^2i+4t^3j +(5t+2)k]m/s, where t is in seconds. If the particle is at the origin when t=0, determine the magnitude of the particle's acceleration when t=2s. What is the x,y,z coordinate position of the particle at this instant.
please answer all questions For 1 2 0, a particle moves along the r-axis. The velocity of the particle at time t is given by r(t)-1 + 2sin(2) Theparticle is atposition x = 2 attimet=4. (a) At time t-4, is the particle speeding up or slowing down? (b) Find all times t in the interval o<t<3 when the particle changes direction. Justify your answer. (c) Find the position of the particle at time t 0. (d) Find the total distance...
For each of the velocity-time graphs shown below, draw the corresponding acceleration- time graph. 2-0 0 2 46 8 I time (s) i time (s) I i time (s) 0 0 0 2 4 6 8 0 2 468 time (s) time (s) time (s) A car moves along a line (the positive x-axis). Fill in the table below with the sign (t or-) of the velocity and acceleration of the car for each of the motions described. 2 Acceleration...
(8) The velocity of a car is given by v(t) = -9t- + 16t -9. Dodo bno (a) (8pts) Find the acceleration function.in (b) (8pts) Find the position function s(t) if the initial position is s(0) = 0.
Part Description Answer Chk History Can the average velocity ever be greater than the average speed? 4.4 pts, 110% 1. Yes 2. No 3. Depends on situation # tries: 0 show Details 33% try penalty Hints: 0.0 A car has a velocity of -45 ft/s and an acceleration of +3.7 ft/s2. The car is 4.4 pts. 110% B. # tries: 0 show Details 1. speeding up 2. slowing down 33% try penalty 3. moving at constant velocity Hints: 0,0 You...
Reading Velocity Graphs motion diasrams to each s ons for Y and a Given the following velocity vs. time graphs answer the questions that follow A for a raphs 1D Is graph A speeding up or slowing down? Explain. 2) Is graph B speeding up or slowing down? Explain. Slow: 31 A(s store 3) Is the acceleration of A positive or negative? How about for B? Explain. A:Tes, pos ólope B:nes, nes slope Which graph has a greater magnitude of...
3.) The position of a particle is given by x(t) = 3t3 – 2t2 – 5t + 10, where t is in seconds and x is in meters. Find the initial position of the particle. Find the position of the particle after 5 seconds. Find the average velocity from 0 sec to t = 5sec Find the instantaneous velocity as a function of time Find the instantaneous velocity at t = 2 seconds. Find the instantaneous velocity at t=4 seconds...
0 to 60 mph in 10 seconds with the A car accelerates smoothly from velocity given in the figure below. Estimate how far the car travels during the 10 -second period. v (mph) 60 40 20 t (sec) 10 5 Round your answer to three decimal places. miles. The car traveled 0 to 60 mph in 10 seconds with the A car accelerates smoothly from velocity given in the figure below. Estimate how far the car travels during the 10...