Question

A flowerpot falls from a windowsill $25.0m$ above the sidewalk. How fast is the flowerpot moving when it strikes the ground? (in m/s)

• A. $22$
  
• B. $23$
  
• C. $26$
  
• D. $25$
  

Answer 1

Answer: (A)

$22$

Initial speed of flowerpot $u=0$
Height $h=25.0m$
Applying $3_{rd}$ equation of motion,
$v^2=u^2+2gh$
$v^2=0^2+2\times 9.8\times 25$
$v=22m/s$