Answer:
the answer is 14,400
Step-by-step explanation:
Answer:
i need help
Step-by-step explanation:
Answer:
Area= 12 units squared, Perimeter= 16.12899
Step-by-step explanation:



So, perimeter= 



Use the kinematics equation:
v1^2-v0^2=2as
since v1=0 (at height of 81 ft), and a=g=-32.2, substitute values:
0-v0^2=2*(-32.2)(81 ft)
Solve for v0
v0=sqrt(2*32.2*81)=72.2 m/s