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A body projected from the top of a tower...

A body projected from the top of a tower with a velocity u = 3i + 4j + 5k `ms^(-1)` . Where `hatj` and `hatk` are unit vectors along east, north and vertically upwards respectively. If the height of the tower is 30 m, horizontal range of the body on the ground is(g = `10ms^(-2)`)

A

12m

B

9m

C

25m

D

15m

Text Solution

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The correct Answer is:
D
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