A race car starts from rest and travels east along a straight and level track. For the first 5.0 s of the car's motion, the eastward component of the car's velocity is given by vx(t) = (0.990 m/s3)t2. Part A What is the acceleration of the car when vx = 12.5 m/s ? Express your answer with the appropriate units.
![The position of a squirrel running in a park is given by Part A What is vx(t), the x-component of the velocity of the squirrel, as a function of time? r→ = [(0.280 m/s)t + (0.0360 m/s2)t2]i^ + (0.0190 m/s3)t3 j^. vx(t) = (0.0720 m/s2)t vx(t) = 0.280 m/s vx(t) = (0.280 m/s)t + (0.0360 m/s2)t2 vx(t) = 0.280 m/s + (0.0720 m/s2)t Part B What is vy(t), the y-component of the velocity of the squirrel, as a function of time? vy(t) = (0.0570 m/s2)t2 vy(t) = (0.0570 m/s3)t vy(t) = (0.0570 m/s3)t + (0.0720 m/s2)t2 vy(t) = (0.0570 m/s3)t2 Submit Request Answer Part C At t = 5.40 s, how far is the squirrel from its initial position? Express your answer with the appropriate units. r = Value Units Part D At t = 5.40 s, what is the magnitude of the squirrel's velocity? Express your answer with the appropriate units. v = Value Units Units Submit Request Answer Part E At t = 5.40 s, what is the direction (in degrees counterclockwise from +x-axis) of the squirrel's velocity? Express your answer in degrees.](https://www.doubtrix.com/uploads/editor/0873315671WCvJoECFlh.png)
![The position of a squirrel running in a park is given by Part A What is vx(t), the x-component of the velocity of the squirrel, as a function of time? r→ = [(0.280 m/s)t + (0.0360 m/s2)t2]i^ + (0.0190 m/s3)t3 j^. vx(t) = (0.0720 m/s2)t vx(t) = 0.280 m/s vx(t) = (0.280 m/s)t + (0.0360 m/s2)t2 vx(t) = 0.280 m/s + (0.0720 m/s2)t Part B What is vy(t), the y-component of the velocity of the squirrel, as a function of time? vy(t) = (0.0570 m/s2)t2 vy(t) = (0.0570 m/s3)t vy(t) = (0.0570 m/s3)t + (0.0720 m/s2)t2 vy(t) = (0.0570 m/s3)t2 Submit Request Answer Part C At t = 5.40 s, how far is the squirrel from its initial position? Express your answer with the appropriate units. r = Value Units Part D At t = 5.40 s, what is the magnitude of the squirrel's velocity? Express your answer with the appropriate units. v = Value Units Units Submit Request Answer Part E At t = 5.40 s, what is the direction (in degrees counterclockwise from +x-axis) of the squirrel's velocity? Express your answer in degrees.](https://www.doubtrix.com/uploads/editor/3829215722uHLqlhNRmW.png)
![The position of a squirrel running in a park is given by Part A What is vx(t), the x-component of the velocity of the squirrel, as a function of time? r→ = [(0.280 m/s)t + (0.0360 m/s2)t2]i^ + (0.0190 m/s3)t3 j^. vx(t) = (0.0720 m/s2)t vx(t) = 0.280 m/s vx(t) = (0.280 m/s)t + (0.0360 m/s2)t2 vx(t) = 0.280 m/s + (0.0720 m/s2)t Part B What is vy(t), the y-component of the velocity of the squirrel, as a function of time? vy(t) = (0.0570 m/s2)t2 vy(t) = (0.0570 m/s3)t vy(t) = (0.0570 m/s3)t + (0.0720 m/s2)t2 vy(t) = (0.0570 m/s3)t2 Submit Request Answer Part C At t = 5.40 s, how far is the squirrel from its initial position? Express your answer with the appropriate units. r = Value Units Part D At t = 5.40 s, what is the magnitude of the squirrel's velocity? Express your answer with the appropriate units. v = Value Units Units Submit Request Answer Part E At t = 5.40 s, what is the direction (in degrees counterclockwise from +x-axis) of the squirrel's velocity? Express your answer in degrees.](https://www.doubtrix.com/uploads/editor/5078607359uhJJeYDVNH.png)
