Question

Мяч брошен с начальной скоростью 20 м с. Дальность полета мяча при угле бросания 30 градусов равна

Answer 1

vo = 20 м/с

α = 30*

________

L - ?

 

L = vo^2*sin 2α / g

L = 20^2 * sin 60* / 10 = 35 м

Answer 2

Calculation of the Projectile Range

To calculate the range of a projectile thrown at an angle, we can use the following formula:

S = (v^2 * sin(2θ)) / g Where: - S is the range of the projectile - v is the initial velocity of the projectile - θ is the angle of projection - g is the acceleration due to gravity

In this case, the initial velocity of the ball is 20 m/s and the angle of projection is 30 degrees.

Substituting these values into the formula, we get:

S = (20^2 * sin(2 * 30)) / g

To calculate the range, we need the value of g, which is the acceleration due to gravity. The value of g is approximately 9.8 m/s^2.

Substituting the value of g into the formula, we get:

S = (20^2 * sin(60)) / 9.8

Simplifying the equation further:

S = (400 * √3) / 9.8

Evaluating the expression:

S ≈ 20.41 meters

Therefore, the range of the ball when thrown at an angle of 30 degrees with an initial velocity of 20 m/s is approximately 20.41 meters.

Answer

The range of the ball when thrown at an angle of 30 degrees with an initial velocity of 20 m/s is approximately 20.41 meters.