The position of a squirrel running in a park is given by F=[(0.280 m/s)t + (0.0360 m/s²)t2] + (0.0190 m/s³)t³j. ▾ Part D At t = 4.20 s, what is the magnitude of the squirrel's velocity? Express your answer with the appropriate units. V = Submit ▾ Part E 0 = 10 Value HA Submit Request Answer d At t = 4.20 s, what is the direction (in degrees counterclockwise from +-axis) of the squirrel's velocity? Express your answer in degrees. IVE ΑΣΦ 1 Request Answer Units STEP ? ? O
Displacement, Velocity and Acceleration
In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.
Linear Displacement
The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.
![The position of a squirrel running in a park is given by
F=[(0.280 m/s)t + (0.0360 m/s²)t2] + (0.0190 m/s³)t³j.
- Part D
At t = 4.20 s, what is the magnitude of the squirrel's velocity?
Express your answer with the appropriate units.
V =
Submit
▾ Part E
Value
0 =
HÅ
Submit
Request Answer
Units
At t = 4.20 s, what is the direction (in degrees counterclockwise from +x-axis) of the squirrel's velocity?
Express your answer in degrees.
[ΨΕΙ ΑΣΦ
Request Answer
90
@ C
?
B
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