Answer:
V=31.62 m/s.
Step-by-step explanation:
To find the speed at which Eliza will be going at the bottom of the half-pipe, we can use the following formula:
V = √(2gh)
where V is the speed, g is the acceleration due to gravity (10 m/s/s), h is the height of the half-pipe (50 meters), and h is the slope of the half-pipe (40°).
Plugging these values into the formula, we get:
V = √(2 * 10 m/s/s * 50 meters)
V = √(1000 m/s)
V = 31.62 m/s
Thus, Eliza will be going about 31.62 m/s at the bottom of the half-pipe. Rounded to the nearest hundredths, this is 31.62 m/s.