Sunday

November 23, 2014

November 23, 2014

Posted by **bob HELP NEEDED HELP NEEDED HELP NEEDED** on Sunday, May 1, 2011 at 10:33pm.

a) assume that all energy is conserved. what is the initial velocity with which the dolphin leaves the water? round your answer to the nearest hundredth. (Disregard water resistance; g=32f/s^2

b) Convert the initial velocity to mph. Round your answer to the nearest hundredth. (1 mile= 5,280 feet)

- math -
**bobpursley**, Sunday, May 1, 2011 at 11:49pmh=-.2d^2+2d

dh/dt=-.4d dd/dt+2dd/dt

so at max height, dh/dt=0

0=(-.4d+2)dd/dt

but dd/dt is the horizontalveloicy, it can be anything. d=5ft

So without knowing horizontal velocity, I dont know how you can solve for initial velocity.

**Answer this Question**

**Related Questions**

math - a bootlenose dolphin jumps out of the water. the path the dolphin travels...

math - a bootlenose dolphin jumps out of the water. the path the dolphin travels...

physics - A dolphin experiences a force of 320 N [up] when it jumps out of the ...

Physic - A dolphin experiences a force of 320 N [up] when it jumps out of the ...

physics - A trained dolphin leaps from the water with an initial speed of 12 m/s...

physics - during a water show the dolphin made a vertical jump of 2.5 m. ...

math - A Dolphin is 30 feet below the surface of the water. She rised 23 feet, ...

Physics - A dolphin jumps with an initial velocity of 13.0at an angle of 44.0 ...

Physics - A dolphin jumps with an initial velocity of 13.0at an angle of 44.0 ...

physic - A dolphin jumps with an initial velocity of 13.0m/s at an angle of 41.0...