GROWTH DEVELOPMENT CHILD
SUMMATIVE ASSESSMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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An object with a mass of 2000 kg at rest has what momentum?
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2000 kg m/s
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0 kg m/s
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2000 kg
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2000 m/s
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Explanation:
Detailed explanation-1: -An object at rest has a momentum of 0. This helps distinguish momentum from inertia. An object must be in MOTION to have momentum.
Detailed explanation-2: -∴ Momentum of the car P=mv=1000×0. 5=500 kg m/s.
Detailed explanation-3: -Solution: The momentum, p, of the object is simply the product of its mass and its velocity: p = mv.
Detailed explanation-4: -For example, when a ball with a given mass is traveling at a particular speed, it possesses momentum. The moment the ball hits a wall, it comes to rest and therefore transfers its momentum to the wall. Therefore, momentum is always conserved.
There is 1 question to complete.