Question

Помогитееее пожалуйста

Answer 1

$s = \frac{at {}^{2} }{2}$

$s = 10m$

$10 = \frac{4t \times t {}^{2} }{2} = \frac{4t {}^{3} }{2} = 2t {}^{3} = 2.23$

$10 = \frac{3t {}^{3} }{2} = 1.5t {}^{3} = 1.34$

t=t1+t2=2,23+1,34=3,57c