1.

The following equations give the position x(t) of a particle in four situations : (1) x= 3t-4, (2) x= -5t^(3)+4t^(2)+6 , (3) x= 2//t^(2)-4//t, (4) x=5t^(2)-3. To which of these situations do the equations of Table 2-1 apply ?

Answer»


ANSWER :1 and 4 ( `a =d^(2)x//dt^(2)` must be constant )


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