Question

l
A particle is projected vertically upwards from a platform which is 9 m above the ground The
height, s metres, of the particle above the ground 1 seconds later is given by s=9+12-5°.120
(a) Calculate the value oft when the particle reaches the ground
(b) Calculate the speed in m's, of the particle as it reaches the ground

Your answer
is
and
1
28.
4 points​

Answer 1

Answer:

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