Questions
A particle starts moving from origin along x-axis. Its displacement (x) after time t is given by x = t2 m. Then the magnitude of average velocity of the particle in the interval t = 0 to t = 4 sec is
a
b
c
d
detailed solution
Correct option is A
At any time t , v = dxdt= 2t . Therefore ,vavg = ∫042tdt∫04dt = 4 m/sTalk to our academic expert!
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A man moves from home to market which is at a distance of 2 km with a speed of 3 kmph. Finding the market closed he instantly returns home with a speed 6 kmph. The average velocity of the man in the total journey is
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