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harkovskaia [24]

4 years ago

13

A moving walkway has a speed of .4 m/s to the east. A stationary observer sees a man walking on the walkway with a velocity of 3

.0 m/s to the east. What's the mans velocity relative to the moving walkway?

1 answer:

SVEN [57.7K]4 years ago

8 0

Explanation:

Vnet = 0.4m/s - 3.0m/s = - 2.6m/s

so the man walks 2.6m/s towards the west

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True or False: Amplitude can increase or decrease wavelength

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Answer:

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Here, mA = 3.65 kg and mB = 7.05 kg. The string connecting the two objects is of negligible mass and the pulley is frictionless.

mr_godi [17]

Answer:

The magintude of the acceleration for both objects is $3.11m/s^2$

Explanation:

Drawing a free body diagram on the two boxes we can analyze the system more easily.

we can take the acceleration going up as positive for reference purposes.

for mA let's suppose that is ascending so:

$T_A-m_A*g=m_A*a$

and for mB (descending):

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So the magintude of the acceleration for both objects is $3.11m/s^2$

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3 years ago

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3 years ago

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