Questions
A stone is dropped from a height of 90cm above the top of a window which is 160 cm high. The time taken by the stone to cross the window is
detailed solution
Correct option is B
t1 = to come upto the window =2×90980=37sec.t2 = to come below the window =2×250980=57sect2−t1=27 sec. time to cross the window.Talk to our academic expert!
Similar Questions
A person sitting in the ground floor of a building notices through the window, of height 1.5 m, a ball dropped from the roof of the building crosses the window in 0.1 s. What is the velocity of the ball when it is at the topmost point of the window ? ()
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