All Questions
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questions
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Clear Pictures from a Distance
How are astronauts able to take high resolution photos of small objects on the Earth's surface while traveling at 25,000 feet per second without the image being blurred?
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4
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Find the relation between length of pulley and strings [closed]
A pulley is pulled with external force $F$. $x$ and $y$ denote the displacement of two ends of strings of the pulley and $z$ is the displacement of the pulley.
Prove That $$z = \dfrac{x+y}{2}$$...
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3
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1
answer
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Trajectory of a swimmer trying to reach the opposite bank [closed]
I came across the following question 2 days ago:
$Q$. A swimmer is swimming in a river with a speed $u$ with respect to the speed of water which is $v$. It is assumed that the river has straight ...
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