Soru
Select the correct answer. A bubble originating at the bottom of a lake rises to the surface within 10.0 seconds with an acceleration 10.0meters/second^2 What is the depth of eration of the lake? A. 100 meters B. 200 meters C. 300 meters D. 400 meters E. 500 meters
Çözüm
4.4249 Voting
İlayda
Elit · 8 yıl öğretmeniUzman doğrulaması
Cevap
To solve this problem, we can use the equation of motion for uniformly accelerated motion:<br /><br />\[ s = ut + \frac{1}{2}at^2 \]<br /><br />where:<br />- \( s \) is the displacement (the depth of the lake),<br />- \( u \) is the initial velocity (which is 0 m/s since the bubble starts from rest),<br />- \( a \) is the acceleration (10.0 m/s\(^2\)),<br />- \( t \) is the time (10.0 seconds).<br /><br />Plugging in the values, we get:<br /><br />\[ s = 0 \cdot 10.0 + \frac{1}{2} \cdot 10.0 \cdot (10.0)^2 \]<br />\[ s = \frac{1}{2} \cdot 10.0 \cdot 100 \]<br />\[ s = 500 \text{ meters} \]<br /><br />Therefore, the correct answer is:<br /><br />E. 500 meters
Derecelendirmek için tıklayın: