Question

An object is thrown vertically upward to a height of 12m . Calculate its velocity with which it was thrown upwards. Time taken by the object to reach a height of 12m

Answer 1

$v = \sqrt{2gh}$
$v = \sqrt{2 \times 12 \times 10}$
$v = \sqrt{240} = 15.4mps$
$t = \sqrt{ \frac{2h}{g} }$
$t = \sqrt{ \frac{24}{10} }$
$t = 15$Here is your answer
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Answer 2

Answer:

=

2×12×10

v = \sqrt{240} = 15.4mpsv=

240

=15.4mps

t = \sqrt{ \frac{2h}{g} }t=

g

2h

t = \sqrt{ \frac{24}{10} }t=

10

24

t = 15t=15