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## Homework Statement

**Q 1.**How fast will a skydiver be travelling 1 second after jumping from a plane?

## Homework Equations

SUVAT formula

## The Attempt at a Solution

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I guessed the answer to be 10 m/s because something to do with gravity and a 1 kg mass. The answer is correct according to the book but I’m not sure why. The mass of the skydiver will be much more than 1 kg. So my guess is not really an educated guess.

Please can you explain to me the answer in words terms (without the use of equations). (If possible) Thank you

**.**

I recently learnt about the

**SUVAT formula**from another post recently so have applied this here. (Please note that the book I’m reading does not even mention SUVAT formula yet so I don't think I meant to be using SUVAT)

s = distance

u = initial velocity

v = final velocity

a = acceleration

t = time

v = u + at

V = 0 + 10*1 (I am assuming acceleration to be 10m/s

^{2}because of gravity)

V = 10m/s (The answer is correct according to the book)

I’d like to post the second part of this question here too, if I may because it is linked to the first question.

**Q 2.**If the air resistance force on the skydiver is 0.1V

^{2}, what will be its magnitude and direction after one second?

Here I have no idea where to start. Please note this section of the book is discussing terminal velocity (if that has any relevance).

Answer in the book is 15 N upwards