The body is thrown at an initial speed of 40 m / s at an angle of 60 degrees to the horizon.

The body is thrown at an initial speed of 40 m / s at an angle of 60 degrees to the horizon. Calculate the speed at maximum flight altitude (cos 60 degrees = 0.5, air resistance is not taken into account)

To calculate the flight speed of a thrown body at maximum altitude (at this point Vу = 0 m / s and V = Vx), we will use the formula: V = V0x = V0 * cosα.

Variables: V0 – initial speed of the throw (V0 = 40 m / s); α – angle of throw to the horizon (α = 60º).

Let’s calculate: V = V0 * cosα = 40 * cos 60º = 20 m / s.

Answer: The thrown body at the maximum flight altitude had a speed of 20 m / s.