Motion in A Straight Line

Question: An alpha particle enters a hollow tube of 4 m length with an initial speed of 1 km/s. It is accelerated in the tube and comes out of it with a speed of 9 km/s. The time for which it remains inside the tube is



1) \[8 \times {10^{ - 3}}\]s
2) \[80 \times {10^{ - 3}}s\]
3) \[800 \times {10^{ - 3}}s\]
4) \[8 \times {10^{ - 4}}s\]
Solution: Explanation: Explanation
non-uniform-motion

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