Question
A body is projected upwards with an initial velocity u .
At the highest point, what is its acceleration? ÂSolution
At the highest point, the body's velocity becomes zero momentarily, but acceleration due to gravity (g) still acts downwards.  Thus, even though speed is zero, acceleration is g downwards throughout the motion.  This is why the body starts falling back after reaching the maximum height.
Which of the following is the correct set-up for electrolytic refining of silver?
The density of the liquid when heated
A body is thrown vertically upward. At the highest point of its motion, which of the following is true?
Deficiency of _________ causes the leaves to develop a dark green colouration.
What happens when light enters a glass slab from air?
What is the focal length of a double convex lens for which the radius of curvature of each surface is 30 cm and the refractive index of glass is 2.50 ?
The mass of a body on earth is 10 Kg, acceleration due to gravity, g (e) is 10 m/s² . If acceleration due to gravity on the moon is g (m) 6 m/s² , the...
The radiation initially produced in fluorescent tube is –
An element "X", having atomic number 16. gains two electrons to form an anion X. What will be the atomic
number of 'X' in the anion?
Necessary element of change in solar energy to electric energy –
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