Question

тело брошено вертикально вверх со скоростью v найти высоту подъёма тела

Answer 1

Скорость v меняется со временем t по формуле: 

v=v0-g*t, где g=9,8м/(с*с) , приближенно 10м/(с*с) . 

На максимальной высоте скорость равна 0, 

0=20-10t, отсюда время подъёма: t=2 c. 

Высота: h=v0*t-1/2*g*t*t=(20*2-5*4) м= 20 м. 

Answer 2

Calculating the Height of the Object Thrown Vertically Upward

To calculate the height of the object thrown vertically upward, we can use the following formula:

S = v₀t - (1/2)gt².

Where: - S represents the height of the object at any given time t. - v₀ is the initial velocity of the object. - g is the acceleration due to gravity (approximately 9.81 m/s² near the Earth's surface). - t is the time.

Given that the body is thrown vertically upward with an initial velocity v, we can find the height of its ascent using the above formula.

Calculation

Using the formula S = v₀t - (1/2)gt², and considering the initial velocity v as the velocity at which the body is thrown upward, we can calculate the height of the body at the point of maximum ascent.

S = v₀t - (1/2)gt² v₀ = v t is the time taken to reach the maximum height, and at this point, the velocity becomes 0.

Given that the initial velocity is v and the acceleration due to gravity is g, we can calculate the time taken to reach the maximum height using the formula v = v₀ - gt.

Conclusion

By using the above calculations, we can determine the height of the body at the point of maximum ascent when thrown vertically upward with an initial velocity v.