Answer:
y=42
Step-by-step explanation:
7y = 6×49
y = (6×49)÷7
y= 42
You have to do this because the answe is the 2nx
Answer:
1.7 seconds
Step-by-step explanation:
we have

where
v is the initial velocity (in feet per second)
s represents the initial height (in feet)
In this problem we have
---> because the object is dropped

substitute

Remember that
When the chestnut hit the ground the value of H is equal to zero
so
For H=0

solve for t

therefore
The solution is t=1.7 sec