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Which is A child weighing 20 kg sitting inside a car of mass 1000 kg moves with a velocity of 10 m s What is the total momentum of the child and the car together?
Wiki User
∙ 13y ago
Use the momentum equation!
∑M * V = (20 + 1000)(10) = 10,200
Wiki User
∙ 13y ago
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Which has a greater momentum a car sitting still or a pebble rolling down a hill?
Momentum is the product of mass x velocity. At zero velocity, momentum will also be zero.
Which is A child weighing 20 kg sitting inside a car of mass 1000 kg moves with a velocity of 10 m s What is the momentum of the child?
-- "20 kg" is the child's mass, not her weight.-- The car's mass doesn't matter.The child's momentum is (M V) = (20) (10) = 200 kilogram-meters per second.
What would have the most momentum a charging elephant a jumbo jet sitting on the runway or a baseball traveling at 100 km per h?
momentum = mass * velocity 1) a charging elephant mass = 7500 kg ( http://en.wikipedia.org/wiki/Elephant ) velocity = elephants may reach 25 km/h momentum = (7 500 kilograms) * 25 km/h = 52083 m kg / s 2) a jumbo jet sitting on the runway velocity = 0 momentum = 0 3) baseball traveling at 100 km/h mass = 145 g (http://hypertextbook.com/facts/1999/Chri…) velocity = 100 km/h momentum = (145 grams) * 100 km/h = 4.02 m kg / s The charging elephant wins PS: THIS IS NOT MY ANSWER! I FOUND IT ON YAHOO!
Does a car have momentum when it's sitting still?
No
Where is the battery in a velocity 50cc scooter?
Under where your feet would be if you were sitting on it.
Why is momentum M times V?
Simply because physicists discovered that it is a product that is conserved. In collisions of two objects for example, if you add up the momentum before the collision the momentum will be the same after the collision. Note that momentum is not something that has a concrete reality. A rock sitting on the ground has zero momentum relative to us here on earth but has alot of momentum relative to someone on mars. It can not have zero momentum and alot of momentum at the same time, it depends on ones frame of reference. My point is that momentum is not at 'concrete" thing. Refer to the 'Conservation of linear momentum' in Wikipedia.org, "The World's Encyclopedia" *Check out related links*
Is a flower pot weighing 3 newtons sitting on a windowsill 30 meters from the ground potential or kinetic?
Potential Energy The object is not in movement.
When you ride your bike do you burn more fat when your standing up or sitting down?
you burn more fat when you are sitting. the muscles in your body are forced to work harder because your body is not producing momentum for each pedal pushed.
Does an object have twice as much velocity if it has twice the mass of a second object?
No. An object's velocity is completely unrelated to its mass. When you're sitting in your seat on a commercial airliner cruising at 30,000 feet, your velocity is precisely the same as the airliner's velocity, even though, we venture to surmise, there is quite a difference between the airliner's mass and yours.
IS velocity possible in zero gravity?
Velocity is relative to the observer and or objects that are in the area , if your sitting in true zero gravity from your point of view you will be standing still but in-reality your velocity will based on your original thrust. Some one watching you (at a zero velocity) from another location might see you zoom by at the original velocity. So the new question is if that other person has zero velocity and is in zero gravity what time will it be when they look at their watch ? Hmmm
What is another word for sit together?
Another word for sitting together could be lounge or gather.
Can a body have energy without momentum?
Sure. A bowling ball sitting on the top shelf in the closet has a great deal of potential energy. But it's not moving, so its momentum is zero. And let's not forget the heat energy in a glass of water, the chemical energy in a gallon of gasoline, or the electrical energy in a battery ?
