Eric Nicholas K's answer to Nur Atika's Secondary 4 A Maths Singapore question.

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Eric Nicholas K
Eric Nicholas K's answer
5997 answers (Tutor Details)
1st
Good evening Atika! The last option “the value of a is negative” is our best choice here.
J
J
4 years ago
Not necessary that c must be positive. C can be 0 when launched at grade (otherwise known as from ground level) or negative if launched from an underground base
Nur Atika
Nur Atika
4 years ago
THANK YOU SO MUCH