smriti covers a distance of 40 km by riding her scooty at a speed of 50 km/h. calculate the total time taken by her.
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Answer: 4/5hr or 48min or 2880sec
Explanation: from the equation of motion
x(t)=x' + v'(t) + 0.5a(t^2)
40=0 + 50t
t=4/5hr
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