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in a straight line such that cd particle travelling v (t) = (t?- 2t)m/s. Find average velocity and average speed at t=0 to t = 3 Sec. |
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Answer» The leaves of certain plants exhibit droplets of water along their margins in the morning. This particularly happens in plants growing in warm humid conditions. A humid environment hampers TRANSPIRATION while the roots continue to absorb water from the soil. This builds up a big hydrostatic PRESSURE WITHIN the plant and “forces out” the excess water directly from the tips of VEINS in the leaf. Special pore-bearing structures CALLED hydathodes are present on the margins of the leaf to allow this exudation. |
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