An object is thrown vertically upwards and rises to a height
of 10 m. Calculate (i) the velocity with which the object was thrown upwards and (ii) the time taken by the object to
reach the highest point.
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Answer:
Distance travelled, s = 10 m
Final velocity, v = 0 m/s
g = -9.8 m/s²
i) Using,
v² − u² = 2gs
u² = 196
u=14m/s, where u is the velocity with which the object is thrown upwards.
ii) Using,
v = u + gt
t = v − u/g = 1.43 sec
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