Question

A freight train rolls along a track with considerable momentum. if it rolls at the same speed but has twice as much mass, its momentum is​

Answer 1

Answer:

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Explanation:

Since p = mv

 So p1 = (2m) × v = 2mv = 2 p

so, The momentum would be doubled.

Answer 2

A freight train rolls along a track with considerable momentum. If it rolls at the same speed but has twice as much mass, its momentum doubles.

• The linear momentum of a body is the product of the mass and the velocity of the body.
• It can be expressed by the following formula.

        $p = m * a$

• Here, p is the momentum, m is the mass and a is the acceleration of the freight train.
• As evident from the formula, the momentum is directly proportional to the mass and hence, if the mass becomes twice, the momentum does too.