Abasketball player throws the ball at a 47 angle above the horizontal to a hoop which is located a horizontal distance l = 5.0 from the point of release and at a height h = 0.8 above it. what is the required speed if the basketball is to reach the hoop?

1.71

Explanation:

the parabolic movment is described by the following equation:

where y is the height of the ball, a is the angle of launch, the initial velocity, g the gravity and x is the horizontal distance of the ball.

So, if we want that the ball reach the hood, we will replace values on the equation as:

Finally, solving for , we get:

1.71

the answer is c. the lower legs are levers, and the knees are fulcrums. the ankles hold the loads.