# physics

A 755 N diver drops from a board 10.0m above the water's surface.Find the diver's speed 5.00 m above the water's surface. Then find the diver's speedjust before striking the water.

1. 👍
2. 👎
3. 👁
1. F=ma

where a=9.81m/s^2 (gravity)

solve for m

now use the formula:

(1/2)m*v^2 + m*g*h = m*g*h2+(1/2)*m*v2^2

m=755
v=0
h=10 (starting height)
h2=0 (final height)
v2 = ?? this is what we're trying to find.

try to solve for v2 given the equation.

1. 👍
2. 👎
2. V^2 = Vo^2 + 2g*h = 0 + 19.6*(10-5) = 98
V = 9.90 m/s @ 5 m above the surface.

V^2 = 0 + 19.6*10) = 196
V = 14 m. Just before striking the surface.

1. 👍
2. 👎

## Similar Questions

1. ### Physics

A 55.0 kg diver steps off a diving board and drops straight down into the water. The water provides an upward average net force 1480 N. If the diver comes to rest 5.6 m below the water's surface, what is the total distance between

2. ### Science

1. Use the image below to answer the following question. An image shows a diver crouching on a diving board labeled 1. The diver launching off the board is labeled 2. The diver just about to enter the water is labeled 3 The diver

3. ### physics

2. a 755N diver drops from a board 10.0 m above the water's surface. Find the divers speed 5.00 m above the water's surface. then find the diver's speed just before striking the water. 3. if the diver in item 2 leaves the board

4. ### physics

A 65 kg diver jumps off of a 10.0 m tower. a. Find the diver's velocity when he hits the water. b. The diver comes to a stop 2.0 m below the surface. Find the net force exerted by the water. Ok, im a little confused about this

A diver stands on the end of a diving board as shown in the figure on the right. The mass of the diver is 58 kg and the mass of the uniform diving board is 35 kg. Calculate the magnitudes and directions of the forces exerted on

2. ### math?

how do i figuire this problem out? .. A deep-sea diver must descend and ascend in short steps to equalize pressure on his body. If the diver rises toward the surface too fast, he may suffer from a physical condition called “the

3. ### Physics

A 50 kg diver steps off a diving board and drops straight down into the water. The water procides an upward average net force of 1500 N. If the diver comes to rest 5m below the water's surface, what is the total distance between

4. ### physics!-concervation of energy equations

2. a 755N diver drops from a board 10.0 m above the water's surface. Find the divers speed 5.00 m above the water's surface. then find the diver's speed just before striking the water. 3. if the diver in item 2 leaves the board

1. ### Physics

A 50.0 kg diver steps off a diving board and drops straight down into the water. The net force when in the water is an upward 1450 N. If the diver comes to rest 5.0 m below the water's surface, what is the total distance between