Questions
Two particles are simultaneously projected in opposite directions horizontally from a given point in space, where gravity g is uniform. If and be their initial speeds, then the time t after which their velocities are mutually perpendicular is given by
detailed solution
Correct option is A
Given, v1⊥v2∴ v1·v2=0 or u1i^-gtj^·-u2i^-gtj^=0∴ g2t2=u1u2 or t=u1u2gTalk to our academic expert!
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A ball is thrown with a velocity of u making an angle with the horizontal. Its velocity vector normal to initial vector (u) after a time interval of
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