N amusement park water slide, people slide down an essentially frictionless tube. The top of the slide is 3.0m above the bottom where they exitthe slide, moving horizontally, 1.2mabove a swimming pool. What horizontal distance do they travel from the exit point before hitting the water

Horizontal distance will be 3.79 m

Explanation:

We have given h = 3 m

Acceleration due to gravity

From conservation of energy we know that

Now initial vertical velocity = 0 m/sec

Initial horizontal velocity = 7.66 m/sec

Now height h = 1.2 m

From second equation of motion

t = 0.494 sec

Now horizontal distance = Horizontal speed × time = 7.66×0.494 = 3.79 m

work: w = fd (given)

work done by chet   =50*1 = 50 j

work done by mika =40*2 = 80 j

work done by sara =30*1.5 = 45 j

work done by bill =60*0.5 = 30 j

students in order from the greatest amount of work done to the least is mika> chet> sara> bill

hence option (b) is correct.

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

hope this ! : )