Projectile motion question. Please help me :). I'm stuck on part c. Initial velocity means at t=0, v=? Right?
So if x = vt cos alpha, and vcos alpha= 4
Then x= 4t.. So wouldn't you just differentiate x=4t to find the velocity?
So initial velocity = 4 ? Or is this a trick question?....

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Oh part c question 12 of the attachment :)

there is no attachment....

:/. I'll try add it again
Can you see it now?

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