Question

Камень,брошенный горизонтально с крыши дома со скоростью 15м/с,упал на землю под углом 60 градусов к горизонту. Только распишите подробнее, после нахождения Vy

Answer 1

Т как камень бросили горизонтально то Vx=15 м/с. Vy=0
Потом камень когда упал Vx так и осталась быть равной 15 а Vy изменилась.
Vy=tg60*Vx
Vy=26
H=((Vy)^2)/2g=33.75 метров

Answer 2

Problem Analysis

We are given that a stone is thrown horizontally from the roof of a building with a velocity of 15 m/s. The stone falls to the ground at an angle of 60 degrees to the horizontal. We need to find the vertical component of the stone's velocity, Vy.

Solution

To find the vertical component of the stone's velocity, Vy, we can use the following equation:

Vy = V * sin(θ)

where V is the initial velocity of the stone and θ is the angle at which the stone falls to the ground.

Given that V = 15 m/s and θ = 60 degrees, we can substitute these values into the equation to find Vy.

Vy = 15 m/s * sin(60 degrees)

To calculate the value of sin(60 degrees), we can use the trigonometric identity:

sin(60 degrees) = sqrt(3) / 2

Substituting this value into the equation, we have:

Vy = 15 m/s * (sqrt(3) / 2)

Simplifying the expression, we get:

Vy = 15 * sqrt(3) / 2 m/s

Therefore, the vertical component of the stone's velocity, Vy, is (15 * sqrt(3) / 2) m/s.

Please let me know if I can help you with anything else.