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Four marbles are dropped from the top of the tower one after the other with an interval of one second. The first one reaches the ground after 4 secs. When the first one reaches the ground the distance between the first and second, second and third and third and fourth will respectively be?

Four marbles are dropped from the top of the tower one after the other with an interval of one second. The first one reaches the ground after 4 secs. When the first one reaches the ground the distance between the first and second, second and third and third and fourth will respectively be?

Grade:11

1 Answers

Mrigank
31 Points
6 years ago
Quiet easy, you just need to visualise the question. When the first marble hits the ground the second marble has fallen for three second, third one for two and last one for one second only. The first one has fallen for 4 seconds, i.e., 80m, second one for 45m, third one for 20m and first one 5m.Therefore distance between first and second is 15m, second and third is 25m, and third and fourth is 35m.

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