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The position of a particle moving along a straight horizontal groove is given by \(x = 5 + t(t - 1)\) for...

1. The position of a particle moving along a straight horizontal groove is given by \(x = 5 + t(t - 1)\) for \(0 \leq t \leq 5\) where \(x(t)\) is measured in metres and \(t\) in seconds.
What is the position of the particle at the following times:
At t = 0s the height of the ball will be: ______ metre
At t = 1s the height of the ball will be: ______ metre
At t = 1.5s the height of the ball will be: ______ metre
At t = 2s the height of the ball will be: ______ metre
At t = 3s the height of the ball will be: ______ metre
At t = 3.5s the height of the ball will be: ______ metre

Answer

  1. At t = 0s, x = 5 + 0(0 - 1) = 5 metres.

  2. At t = 1s, x = 5 + 1(1 - 1) = 5 metres.

  3. At t = 1.5s, x = 5 + 1.5(1.5 - 1) = 5 + 1.5(0.5) = 5.75 metres.

  4. At t = 2s, x = 5 + 2(2 - 1) = 5 + 2 = 7 metres.

  5. At t = 3s, x = 5 + 3(3 - 1) = 5 + 6 = 11 metres.

  6. At t = 3.5s, x = 5 + 3.5(3.5 - 1) = 5 + 3.5(2.5) = 13.75 metres.

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