Aswimmer bounces straight up from a diving board and falls feet first into a pool. she starts with a velocity of 4.00 m/s, and her takeoff point is 1.20 m above the pool. (a) how long are her feet in the air? .3 incorrect: your answer is incorrect. s (b) what is her highest point above the board? m (c) what is her velocity when her feet hit the water? m/s

The height of the swimmer's feet in the air at time is given according to

where is the magnitude of the acceleration due to gravity (taken here to be 9.80 m/s^2).

a. Solve for when :

(The other solution is negative; ignore it)

b. At her highest point , the swimmer has zero velocity, so

c. Her velocity at time is

After 1.05 s in the air, her velocity will be

439400

step-by-step explanation:

130^2 = 16900

16900*26 = 439400