If an object is thrown upward at 30 m/s, what is the time to reach maximum height? (Take g = 10 m/s²)

1. If an object is thrown upward at 30 m/s, what is the time to reach maximum height? (Take g = 10 m/s²)

1. 2 s2. 3 s3. 4 s4. 5 s