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Marina86 [1]
3 years ago
15

2) Billy jumps upward with a velocity of 4.2 m/s off a 6m high diving board. What is his final velocity once he hits the water?

And how long does it take for Billy to hit the water?
Physics
1 answer:
Yuliya22 [10]3 years ago
7 0

Answer:

The value of the final  velocity  is  v  =  11.6 \  m/s

Explanation:

Generally from kinematic equation

    v^2 =  u^2  + 2as

Here a is the acceleration which is equivalent to  g

So

    v^2 =  u^2  + 2gs

substituting 6 m for s , 4.2m/s for u  

    v^2 =  4.2^2  + 2 *  9.8 * 6

    v  =  11.6 \  m/s

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