A stone is projected vertically upwards from the ground at an initial speed of 15 m/s air resistance is negligible. What is the maximum height reached by the stone?
پندرہ میٹر/سیکنڈ ہوا کے خلاف مزاحمت کی ابتدائی رفتار سے زمین سے عمودی طور پر اوپر کی طرف ایک پتھر کا تخمینہ نہ ہونے کے برابر ہے۔ پتھر سے زیادہ سے زیادہ اونچائی کتنی ہے؟
Answer: 11 m
Explanation
To find the maximum height, we can use the equation:v² = u² + 2as
where:
v = final velocity (0 m/s, since it momentarily stops at the maximum height)
u = initial velocity (15 m/s)
a = acceleration due to gravity (-9.8 m/s²)
s = displacement (height)
Rearranging the equation to solve for s:
s = u² / (2 × 9.8)
s = (15)² / (2 × 9.8)
s = 225 / 19.6
s ≈ 11.48 m
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