Physics
Mechanics
A particle moves along the x axis. equation x = 2 x 3t - 4t2

A particle moves along the x axis. equation x = 2 x 3t - 4t2

A particle moves along the x axis. Its position is given by the equation x = 2 x 3t - 4t2 with x in meters and t in seconds. Determine
(a) Its position when it changes direction and
(b) Its velocity when it returns to the position it had at t = 0.

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How many integer solutions are there to the equation
x1 + x2 + 2x3 + x4 + x5 = 72
when
(a) xi 0,i = 1,...,5
(b) xi 1,i = 1,...,5

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A particle moves along the x axis. equation x = 2 x 3t - 4t2

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