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3 years ago

12. One object has half the mass of another object. The first object also has half the ---.

Physics

1 answer:

Tanya [424]3 years ago

3 0

The first object also has half the inertia.

Answer: Option A

<u>Explanation:</u>

Inertia is the tendency of an object to remain in its state. It resists the change in the state of object due to any external forces. So the inertia is the property of an object to resists the change in its state due to any kind of external force. Thus as the mass decreases, the central mass of inertia of the object will also decrease as both are directly proportional to each other.

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cricket20 [7]

Answer:

$a=4.44\frac{m}{s^2}$

Explanation:

First we have to find the time required for train to travel 60 meters and impact the car, this is an uniform linear motion:

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$d=vt\\d=20\frac{m}{s}(0.5s)=10m$

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$d=v_0t+\frac{1}{2}at^2\\a=\frac{2(d-v_0t)}{t^2}\\a=\frac{2(35m-20\frac{m}{s}*1.5s}{(1.5s)^2}\\a=4.44\frac{m}{s^2}$

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3 years ago

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3 years ago

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Alex787 [66]

Answer:

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3 years ago

Nitroglycerin flows through a pipe of diameter 3.0 cm at 2.0 m/s. If the diameter narrows to 0.5 cm, what will the velocity be?

Korolek [52]

Answer:

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