an object is thrown vertically upwards and rises to a height of 10m calculate 1 the velocity with which the object was thrown upwards and 2 the time taken by the object to reach the highest point
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Assuming that g = 10m/s²
(2) s = ut+ at²/2
10 = 0t + 10t²/2 = 5t²
t = √(10/5) = √2 seconds
(1) v = u + at = 0 + 10t = 10(√2)
v = 10√2 metres.
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