Posted by mike on .
A gray kangaroo can bound across a flat stretch of ground with each jump carrying it 9.3 m from the takeoff point. If the kangaroo leaves the ground at a 17.6 degree angle, what is its takeoff speed?

physics 
Elena,
L=vₒ²•sin2α/g,
vₒ =sqrt(L•g/ sin2α)=
=sqrt(9.3•9.8/sin35.2º)=2.26 m/s