A jumper in the long-jump goes into the jump with a speed of 12 m/s at an angle of 20° above the horizontal. How far does the jumper jump?
A) 3.4 m
B) 6.2 m
C) 9.4 m
D) 15 m
E) 18 m

Question

Quizplus · Accepted Answer

To solve the problem, we can use the equation for the horizontal range of a projectile:

Range = (v^2/g) * sin(2θ)

where v is the initial speed, g is the acceleration due to gravity, and θ is the launch angle.

Plugging in the given values, we get:

Range = (12^2/9.81) * sin(2*20°) ≈ 9.4 m

Therefore, the answer is C) 9.4 m.

A Jumper in the Long-Jump Goes into the Jump with a Speed