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1D Kinematics Problem: An object moves along the x axis according to the equation x = 2.80t2 −...

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Physics

1D Kinematics Problem: An object moves alongthe x axis according to the equation

x =2.80t2 − 2.00t +3.00,

where x is in meters and t is inseconds.

(a) Determine the average speed between t =2.10 s and t = 3.40 s.


(b) Determine the instantaneous speed at t = 2.10s.


Determine the instantaneous speed at t = 3.40s.


(c) Determine the average acceleration between t =2.10 s and t = 3.40 s.


(d) Determine the instantaneous acceleration at t= 2.10 s.

Determine the instantaneous acceleration at t =3.40 s.


(e) At what time is the object at rest?

Answer & Explanation Solved by verified expert
4.4 Ratings (613 Votes)
aposition at any time is given asx 280 t2 200 t 300at t 210 s position is given asxi 280 2102 200 210 300 1115 mat t 340 s position is given asxf 280 3402 200    See Answer
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