a body is thrown vertically upward from ground with a speed of 980 cm/sec.it will raise to a height of ---------- cm.

by third eq of motion v2 = u2 + 2as

v = 0 , u = 9.8 ms , a = -g 

9.8 * 9.8 = 2 * 9.8 * s 

s = 98 20 

s = 4.9 m or 490 cm 

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