After the body is thrown vertically upward in 0.5 s, its velocity is 20 m / s. What is the initial velocity of the body?
| May 31, 2021 | education
Data: t (duration of lifting a given body) = 0.5 s; V (body speed through time t) = 20 m / s.
Constants: g (acceleration due to gravity) ≈ 10 m / s2.
To determine the speed of a given body at the moment of throwing, we will use the formula: V0 = V + a * t = V + g * t.
Calculation: V0 = 20 + 10 * 0.5 = 20 + 5 = 25 m / s.
Answer: The speed of a given body at the moment of throwing was 25 m / s.
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