Question

The current world-record motorcycle jump is 77.0 m, set by Jason Renie. Assume that he left the take-off ramp at 11.0° to the horizontal and that the take-off and landing heights are the same. Neglecting air drag, determine his take-off speed.

Answer 1

44.9 m/s

Step-by-step explanation:

Initial velocity = v

Angle at which the projectile is shot at = θ = 11°

g = Acceleration due to gravity = 9.81 m/s²

Range of projectile

`R=\frac {v^(2)\sin 2\theta}{g}\\\Rightarrow v=\sqrt{(Rg)/(sin 2\theta)}\\\Rightarrow v=\sqrt{(77* 9.81)/(sin (2* 11))}=44.9\\\Rightarrow v=44.9\ m/s`

The take off speed of Jason Renie's motorcycle was 44.9 m/s