## Question

### Solution

Correct option is

2 : 1

The time of flight The initial downward velocity = 20 sin 30° = 10 ms-1. The time taken to fall through a height of 40 m with velocity 10 ms-1 is given by or              t2 + 2t – 8 = 0

which gives t = 2s. Hence the total time to hit the ground

= tf + t = 2 + 2 = 4s

#### SIMILAR QUESTIONS

Q1

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Q2

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Q3

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Q4

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Q5

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Q6

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Q7

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Q8

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Q9

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