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3 years ago

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A diver with a mass of 80.0 kg jumps from a dock into a 130.0 kg boat at rest on the west side of the dock. if the velocity of t

he diver in the air is 4.10 m/s to the west, what is the final velocity of the diver after landing in the boat?

1 answer:

Bogdan [553]3 years ago

8 0

Applying conservation of momentum;

$m_{1} v_{1} + m_{2} v_{2} = m_{f} v_{f}$

Where m1 = 80.0 kg; v1 =4.10 m/s; m2 = 130.0 kg; v2 = 0; mf = (80+130) kg; vf = ??

Therefore,
80*4.1 + 130*0 = 210*vf
vf = (80*4.1)/210 = 1.56 m/s

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(a) What is the escape speed on a spherical asteroid whose radius is 545 km and whose gravitational acceleration at the surface

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1777.92 m/s

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3 years ago

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The electrical force on a 2-c charge is 60 n. the electric field where the charge is located is

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3 years ago

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Let $R_x$ and $R_y$ is the resultant in x and y direction.

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As the system is balanced the net force acting on it is 0. So,

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3 years ago

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ladessa [460]

Answer:

Explanation:

Hello! To solve this problem we must be clear about the concept of energy conservation, and kinetic energy with the following sentence

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The kinetic energy is calculated by the following equation.

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the speed of the three coupled cars after the first couples with the other two is 2.245m/s

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3 years ago

Read 2 more answers