Question

A badminton shuttle is struck, giving it a horizontal velocity of 73

m/s [W]. Air resistance causes a constant acceleration of 18 m/s2

[E]. Determine its velocity after 1.6 s.

Answer 1

Given:

$v_i=73\:\rm m/s$

$a=-18\:\rm m/s^2$

$t=1.6\:\rm s$

The final velocity

$$v_f=v_i+at\\ =\rm 73\: m/s+(-18\: m/s^2)*1.6\: s=44\:m/s$$