exercise:179517241e

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A projectile is fired straight up with an initial velocity of [math]640[/math] feet per second (see Example).

• Find the velocity [math]v(t)[/math].
• How far does the projectile travel during the first [math]10[/math] seconds of its flight?
• How far does the projectile go, and how many seconds after takeoff is this maximum height reached?
• What is the total distance traveled by the projectile during the first [math]30[/math] seconds of its flight?
• What is the velocity when the projectile returns to the ground?