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Projectile is launched from the ground at an angle of 60 degrees. It reaches the max height of 15 m. Acceleration due to gravity is 30 m/s2.?
Full question!
Somewhere in the vast flat tundra of planet Tehar, a projectile is launched from the ground at an angle of 60 degrees. It reaches the maximum height of 15 m. The acceleration due to gravity is 30 m/s2.
A) Find the time in seconds the projectile spends in the air.
B) Find the initial speed of the projectile in m/s.
C) ANSWER: 17.3 Find the minimum speed of the projectile in m/s.
D) Find the horizontal range of the projectile in meters.
TIA!
1 Answer
- ?Lv 61 year ago
A) sqrt(2*40*15)/(30/2)
= 2.30940107676 s
B) sqrt(2*40*15)/sin(60)
= 34.6410161514 m/s
C) cos(60)*34.6410161514
= 17.3205080757 m/s
D) 2.30940107676*17.3205080757
= 40.0