Answer:
a. 41.96ft/s
b. 1.096s
Explanation:
a. v²=u²+2gs
v²=31²+2×10×40
V=41.96ft/s
b. t=(v-u) /g
t=(41.96-31)/10
t=1.096s
hope this helps i think the answer is C
oh i would have to do alot to answer that
