If a Projectile Is Fired Straight Up at a Speed

question 5

Multiple Choice

If a projectile is fired straight up at a speed of 10 m/s, the total time to return to its starting position is about

• A) 2 seconds.
• B) 10 seconds.
• C) 20 seconds.
• D) 1 second.
• E) not enough information to estimate

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