The ball fell freely from the roof of the house (the initial velocity of the ball is zero). What will be its speed in 0.5 seconds?
| August 3, 2021 | education
Data: t (time elapsed since the beginning of the free fall of the ball) = 0.5 s; V0 (initial velocity of the ball when falling from the roof) = 0 m / s.
Constants: g (acceleration due to gravity) = 9.8 m / s2.
The speed of the ball in 0.5 s can be calculated by the formula: V = V0 + a * t = 0 + g * t = g * t.
Calculation: V = 9.8 * 0.5 = 4.9 m / s.
Answer: In 0.5 s after the start of the fall from the roof, the ball will develop a speed of 4.9 m / s.
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