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Sagot :
The object will be at a height of 2.5 m for its velocity to be 7 m/s
The correct answer to the question is Option E. 2.5 m/s
We'll begin by calculating the time taken for the object to attain a velocity of 7 m/s.
Velocity (v) = 7 m/s
Acceleration due to gravity (g) = 9.8 m/s²
Time (t) =?
v = gt
7 = 9.8 × t
Divide both side by 9.8
t = 7 / 9.8
t = 0.71 s
- Finally, we shall determine the height at which the velocity of the object is 7 m/s.
Time (t) = 0.71 s
Acceleration due to gravity (g) = 9.8 m/s²
Height (h) =?
h = ½gt²
h = ½ × 9.8 × 0.71²
h = 4.9 × 0.5041
h = 2.5 m
Therefore, the ball will be at a height of 2.5 m for its velocity to be 7 m/s
The correct answer to the question is Option E. 2.5 m/s
Learn more: https://brainly.com/question/14423998
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