80.51275. Because 1 pound=0.453592 kilograms. 0.453592*71=32.2051 32.2051*2.5=80.51275
Set s(t) = 0 which means it hits the ground. The formula doesn't fit the parameters given as it shows that the pitcher is standing on something 37 feet high.
<span>s(t)=-16t^2+140t+37 and has an initial velocity of 140.
Graphing or solving this, t= 9 seconds when it hits the ground.
The velocity V(t) is the derivative of s(t)
V(t) = -32t+140
V(9) = -148 ft/second which is going down
</span>
Answer:
Step-by-step explanation:
-10m + 35 + 5 = 120
-10m + 40 = 120
-10m = 80
m = -8