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PilotLPTM [1.2K]
3 years ago
8

U. O. IS

Physics
1 answer:
juin [17]3 years ago
7 0

b. 6,900 km/hr

Explanation:

Given parameters:

Mass of George = 70kg

Mass of bus = 5700kg

Speed of bus = 85km/hr

Unknown:

Speed of George to stop the bus = ?

Solution:

For George to stop the bus after collision, his momentum must be equal to that of the bus.

 Momentum is the product of mass and velocity of a moving body.

Momentum = mass x velocity

Momentum of George = Momentum of bus

  mass of bus x velocity of bus = mass of George x velocity of George

   Velocity of George = \frac{Mass of bus x Velocity of bus}{mass of George}

 Velocity of George = \frac{5700 x 85}{70} = 6,921.4km/hr

This is approximately 6,900 km/hr

learn more:

Momentum brainly.com/question/2990238

#learnwithBrainly

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A 1.2 m long wave travels 11.2 m to a wall and back again in 4.0 s. What is
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Two hockey pucks, labeled A and B, are initially at rest on asmooth ice surface and are separated by a distance of18.0 m. Simult
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8.505 m

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<em><u>Distance by puck A</u></em>

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