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Question no. 8.A particle is thrown vertically upward with some velocity. In the last two seconds before coming to rest, it travels a distance X1. In the last 1 second before coming to rest, it travels a distance X2.

Question no. 8.A particle is thrown vertically upward with some velocity. In the last two seconds before coming to rest, it travels a distance X1. In the last 1 second before coming to rest, it travels a distance X2.

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Grade:11

1 Answers

Vikas TU
14149 Points
7 years ago
Let in n seconds the particle get travelled the whole distance.
In (n-2) seconds the distance travelled would be:
X1 = u(n-2) – 0.5g(n-2)^2..........(1)
In last 1 second,
X2 = u(n-1) – 0.5g(n-1)^2..........(2)
Hence here there more than 2 variables and we have 2 eqns. therefore the data is insufficient.

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