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Which has more momentum a 1000 kg car moving 1 meters per second or a 70 kg person sprinting at 8 meters per second?
Wiki User
∙ 14y ago
Kinetic Energy is E = 1/2 * m * V^2
Therefore the car has an energy of 500 joules.
There person has an energy of 32 joules.
I'm not completely sure about how that equates to momentum but that car certainly has much more energy due to its greater mass.
Wiki User
∙ 14y ago
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Does a still object have momentum?
yes , look at a moving car or a walking person
How much momentum does and object have when it stops?
The Same! The statement above is true depending on what u mean. Think of it as a person running. While the person is running they have momentum ( momentum is mass times velocity). Now say they for some reason have to suddenly stop all at once, at the exact moment they stop the momentum is the same, this is why their body would jerk forward. However after that, when they were no longer moving, they would no longer have momentum, mathematically speaking that person's mass times their velocity of zero is then zero.
Why does a person fall when he jumps out from a moving train?
He falls due to gravity, but he may land slightly further along the track due to his momentum.
Why does a gunner feel a backward jerk when firing a gun?
This is conservation of momentum. You have the hot gases from the explosive charge along with the bullet moving out the barrel, away from the person. Momentum is mass times velocity. While the mass of the bullet and gases are small, the velocity is very high. So nothing was moving before the trigger was pulled, so net momentum is zero. After the trigger is pulled, the momentum is still net zero. Any momentum away from the gunner will have an equal momentum (the gun recoiling) toward him. Since the gun has much more mass than the bullet, the velocity is much less.
A person jumping off a moving bus tends to fall forward?
yes they do. this is due to momentum. same way as when you throw a ball. it hits the ground and keeps rolling forward.
Why does a person without a seat belt continue moving in a car accident?
Momentum! Car has momentum before an accident, this momentum is transferred to the person after the car has made an abrupt stop (accident).
What is the momentum of an 80 kilogram person if they are running at 6 meters per second?
Momentum (p) = mass * velocity = 80 * 6 = 480 kg-m
What is the momentum of 80 kg person moving southward at 4 ms?
Just multiply mass x velocity.
What is the momentum of a 37kg person riding south on an 18kg bicycle at 1.2 meters per sec?
Linear momentum is defined as mv, where m is the mass and v is the velocity. To get the mass, simply add up the 37kg person and the 18kg bicycle. This makes 55 kg total. We multiply this by 1.2 meters per second. This equals 66kgm/s(Kilogram meters per second).
Does a still object have momentum?
yes , look at a moving car or a walking person
How much momentum does and object have when it stops?
The Same! The statement above is true depending on what u mean. Think of it as a person running. While the person is running they have momentum ( momentum is mass times velocity). Now say they for some reason have to suddenly stop all at once, at the exact moment they stop the momentum is the same, this is why their body would jerk forward. However after that, when they were no longer moving, they would no longer have momentum, mathematically speaking that person's mass times their velocity of zero is then zero.
Why does a person fall when he jumps out from a moving train?
He falls due to gravity, but he may land slightly further along the track due to his momentum.
Why does a gunner feel a backward jerk when firing a gun?
This is conservation of momentum. You have the hot gases from the explosive charge along with the bullet moving out the barrel, away from the person. Momentum is mass times velocity. While the mass of the bullet and gases are small, the velocity is very high. So nothing was moving before the trigger was pulled, so net momentum is zero. After the trigger is pulled, the momentum is still net zero. Any momentum away from the gunner will have an equal momentum (the gun recoiling) toward him. Since the gun has much more mass than the bullet, the velocity is much less.
What is the Momentum of a 37-kilograms person riding south on an 18-kilograms bicycle at 1.2 miles per second?
1.2 miles = 1,931 meters (rounded)Momentum = M V-- Momentum of the person = (37) x (1,931) = 71,447 kilogram-meters per second, south-- Momentum of the bicycle = (18) x (1,931) = 35,758 kilogram-meters per second, south-- Momentum of the package = (55) x (1,931) = 106,216.7 kg-m/sec , southIt must be mentioned that this is one heck of a lot of momentum . . . roughlythe same as a one-ton car has when it's driving 262 miles per hour !That's because you have this 82-lb kid pedaling along on his bike at 4,320 mph . . .roughly Mach 5.7 at sea level !But the physics and math are bulletproof.
How many sprinting events are there in athletics can you explain them?
sprinting events are used to find the person who can accelerate the fastest and run at the highest speed. where as distance races are used to find the person who can run the fastest,in the race, the longest.
A person jumping off a moving bus tends to fall forward?
yes they do. this is due to momentum. same way as when you throw a ball. it hits the ground and keeps rolling forward.
A people moving conveyor-belt moves a 600-newton person a distance of 100 meters through the airport?
This question is not quite clear as to what answer is being sought out. This is more of a statement, so yes, a people moving conveyor-belt moves a 600-newton person a distance of 100 meters through an airport.
