Question

Determine her average velocities in (in $m{s}^{-1}$) the second half of the swim.

• A. $2.27$
  
• B. $65$
  
• C. $35$
  
• D. $41$
  

Answer 1

The correct option is A $2.27$

During second half of swim :
Distance covered

$S_2=50m$
Time taken

$t_2=22s$
Average velocity

$v_2=\frac{diplacement}{time}$

$\Rightarrow v_2=\frac{S_2}{t_2}$

$\Rightarrow v_2=\frac{50}{22}$

$\Rightarrow v_2=2.27m{s}^{-1}$