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Leokris [45]
3 years ago
5

The momentuk of a 3000 kg truck is 64,300 kg at what velocity is the truck traveling

Physics
1 answer:
serious [3.7K]3 years ago
4 0
P=mv
p=momentum(643000)       m=mass(3000)       v=velocity

make equation equal to v 

p/m=v
642000/3000= 214.33333
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A person is standing on a level floor. His head, upper torso, arms, and hands together weigh 458 N and have a center of gravity
Step2247 [10]

Answer:

the location of the center of gravity for the entire body is 1.08 m

Explanation:

Given the data in the question;

w1 = 458 N, y1 = 1.34 m

w2 = 120 N, y2 = 0.766 m

w3 = 89.8 N, y2 = 0.204 m

The location arrangement of the body part is vertical, locate the overall centre of gravity by simply replacing the horizontal position x by the vertical position y as measured relative to the floor.

so,

Y_{centre of gravity} = (w1y1 + w2y2 + w3y3 ) / ( w1 + w2 + w3 )

so we substitute in our values

Y_{centre of gravity} = (458×1.34 + 120×0.766 + 89.8×0.204 ) / ( 458 + 120 + 89.8 )

Y_{centre of gravity} = 723.9592 / 667.8

Y_{centre of gravity} = 1.08 m

Therefore, the location of the center of gravity for the entire body is 1.08 m

5 0
2 years ago
The momentum of an object is defined as the object's ________.
Gekata [30.6K]

Answer: C

Mass times its velocity

Explanation:

Momentum is a measurement of a stability of the system . When momentum is higher system is stable. Ex : Motion of a bullet when its velocity become less its get fallen

Momentum =Mass * Velocity

It's a vector and it's direction is same as velocity direction .

6 0
3 years ago
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