e instantaneous position of an object is specified by its position vector leading from a fixed origin to the location of the object modeled as a particle. Suppose for a certain object the position vector is a function of time, given by r- 4i+ 3j- 1t k, where ř is in meters and t is in seconds (a) Evaluate of/dt. k) m/s (b) What physical quantity does dr/dt represent about the object? O the acceleration vector O the displacement vector O the velocity vector
e instantaneous position of an object is specified by its position vector leading from a fixed origin to the location of the object modeled as a particle. Suppose for a certain object the position vector is a function of time, given by r- 4i+ 3j- 1t k, where ř is in meters and t is in seconds (a) Evaluate of/dt. k) m/s (b) What physical quantity does dr/dt represent about the object? O the acceleration vector O the displacement vector O the velocity vector
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Transcribed Image Text:The instantaneous position of an object is specified by its position vector leading from a fixed origin to the location of the object modeled as a particle. Suppose for a certain object the position vector is a function of time, given by r= 4 i + 3 j - 1t k, where r is in meters and t is in seconds.
(a) Evaluate df/dt.
j+ O R) m/s
(b) What physical quantity does dř/dt represent about the object?
O the acceleration vector
O the displacement vector
O the velocity vector
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