Answer:
4.1 seconds
Explanation:
The height of the football is given by the equation:
Using the inicial position S = 4 and the inicial velocity V = 64, we can find the time when the football hits the ground (H = 0):
Using Bhaskara's formula, we have:
A negative time is not a valid result for this problem, so the amount of time the football is in the air before hitting the ground is 4.1 seconds.
Explanation:
The given data is as follows.
Concentration of caffeine = 2.97 mg/oz
Number of oz in a can = 12 oz
Therefore, the concentration of caffeine in one can is calculated as follows.
= mg
= 35.64 mg
=
Since, it is given that lethal dose is 10.0 g. Hence, number of cans are calculated as follows.
No. of cans =
=
= 280.58
= 281 (approx)
Thus, we can conclude that 281 cans of soda would be lethal.