An object is thrown vertically upwards and rises to a height of 10m . calculate :

1) The velocity with which the object was thrown upwards

2) The time taken by the object to reach the highest point

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v=0m/s

s=10m

g=-9.8m/s2

1)From 3rd equation of motion

2as=v2-u2

2*-9.8*10=02-u2

-196=-u2

u=√196

u=14m/s

2)From 1st equation of motion

v=u+at

0=14-10t

10t=14

t=14/10

t=1.4s

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