Question: A grenade launcher shoots a grenade vertically upward at an initial speed of (120 mathrm{~m} / mathrm{s}). What are the vertical distances covered by it

A grenade launcher shoots a grenade vertically upward at an initial speed of $120 \mathrm{~m} / \mathrm{s}$. What are the vertical distances covered by it after

(a) 6.0 s,

(b) 12.0 s?

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