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?

Question

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?

drwls · Answer

The distance covered in each jump is 9.3 m = (Vo^2/g)*sin(2*17.6) g = 9.8 m/s^2 9.3 = [Vo^2/9.8]*0.5764 Solve for Vo

Anonymous · Answer

12.57

Xuanhe · Answer

I agree with the formula that was used in this previous post to find the velocity, however I do not promote cheating in a Physics environment.