Answer to Question #99073 in Mechanics | Relativity for asif

Question

Estimate the soccer ball‘s speed immediately after being kicked off if its mass is 0.5Kg as shown in the given figure. F . . . F=250N ∆x= 0.20m F= 256N V= ?
Expert's answer

Answer 1

Due to the lack of a drawing, I will assume that the force acting on the ball is only gravity:

$F=m\cdot g=0,5\cdot10=5N$

$a=g=10 \frac{m}{s^2}$

$v=\sqrt{2\cdot a\cdot x} = \sqrt{2\cdot 10\cdot 0.2}= 2 \frac{m}{s}$