Why is it easier to stop a lightly loaded truck than a heavier one that has equal speed explain in terms of the definition of kinetic energy?
1. It is easier to stop a lightly loaded truck than a heavier one moving at the same speed because it has less KE and will therefore require less work to stop. (An answer in terms of impulse and momentum is also acceptable.)
Which requires more work to stop a light truck or heavy truck moving with the same momentum?
More force to stop a smaller truck? With equal momentum, the little truck will have more kinetic energy since kinetic energy depends upon the square of the velocity. With more kinetic energy, it will take more work to stop the smaller truck.
Is it possible for a heavy truck to have the same momentum as a skateboard?
Answer: The roller skate and truck can have the same momentum if the speed of the roller skate is much greater than the speed of the truck. For example, a 1000-kg truck backing out of a driveway at 0.01 m/s has the same momentum as a 1-kg skate going 10 m/s.
When the speed of a moving car is doubled How much more kinetic energy does it have quizlet?
When the speed of a moving car is doubled, how much more kinetic energy does it have? It has four times as much.
Why momentum is product of mass and velocity?
momenta). It's a two-dimensional vector quantity with a magnitude and a direction. If the mass of an object is m and the velocity is v (also a vector quantity), the object's momentum is p=mv. Hence, we get momentum as the product of mass and velocity.
Which has more momentum a heavy truck moving 40 km per hour or a light truck moving 40 km per hour?
Q. Which has more momentum, a heavy truck moving at 30 km/hr or a light truck moving at 30 km/hr? Cannot be determined. They both have the same momentum.
Why is it easier to stop a truck that is lightly loaded compared to a truck that is heavily loaded even though they have the same speed?
It is easier to stop a lightly loaded truck as its Kinetic Energy is less that the heavily loaded truck. Kinetic energy is directly proportional to mass of a body moving at constant speed, so higher the mass more is the Kinetic energy, and hence more difficult to stop the truck.
Which requires more work to stop a light truck or a heavy truck moving with the same momentum hint use the results of the previous problem?
It is easier to stop a lightly loaded truck than a heavier one moving at the same speed because it has less KE and will therefore require less work to stop. (An answer in terms of impulse and momentum is also acceptable.)
Which has more momentum a heavy truck or a light truck?
Q. Which has more momentum, a heavy truck moving at 30 km/hr or a light truck moving at 30 km/hr? Cannot be determined. They both have the same momentum.
Which has a greater momentum the heavy truck at rest or moving skateboard explain briefly?
Which has a greater momentum, a heavy truck at rest or a moving skateboard? A moving skateboard has a greater momentum than a heavy truck at rest.
What happens to the kinetic energy when the mass of a moving object increases?
Mass and kinetic energy have a positive relationship, which means that as mass increases, kinetic energy increases, if all other factors are held constant.
When the speed of a moving car is doubled How much more kinetic energy does it have?
If the speed of a moving car is double then the kinetic energy will increase by a factor of four.
How does the momentum of the heavier car compare to that of the lighter car?
Compared to the lighter car, the momentum of the heavier car is twice as much. 3. The recoil momentum of a gun that kicks is (more than) (less than) (the same as) the momentum of the bullet it fires.
What happens to the momentum when objects have the same velocity but different mass?
Momentum is a conserved quantity; the momentum of an object is never changed. The momentum of an object varies directly with the speed of the object. Two objects of different mass are moving at the same speed; the more massive object will have the greatest momentum.
Which has more momentum a heavy truck or light truck?
Q. Which has more momentum, a heavy truck moving at 30 km/hr or a light truck moving at 30 km/hr? Cannot be determined. They both have the same momentum.
Can a lighter object have more momentum than a heavier one?
Can a lighter object have more momentum than a heavier one? How? No, because momentum is independent of the velocity of the object.
Why does a heavily loaded vehicle take longer to stop than a lightly loaded vehicle?
The breaks, springs, shock absorbers, and tires on heavy load trucks are specifically designed to work better when the vehicle is loaded. This means that empty trucks take longer to stop than loaded trucks, and require a greater stopping distance. There is less traction with an empty vehicle.
Why is it difficult to stop a fully loaded truck than an unloaded one?
The heavier the truck, the more work the brakes must do to stop it, and the more heat they absorb. But, the brakes, tires, springs and shock absorbers on heavy trucks are designed to work with a full load. Empty trucks require greater stopping distances because they have less traction.
Will a heavy van have more or less momentum compared to a lighter van moving at the same speed?
The heavier object however has more momentum since momentum takes into account both the speed and the mass of the object (p=m*v).
Which has greater momentum a heavy truck?
Which has a greater momentum, a heavy truck at rest or a moving automobile? The truck at rest has no speed, hence no momentum. So the moving automobile has greater momentum.
Which has more momentum a heavy truck Quizizz?
Q. Which has more momentum, a heavy truck moving at 30 km/hr or a light truck moving at 30 km/hr? Cannot be determined. They both have the same momentum.
Which has more momentum a huge and heavy truck that is at rest or a small toy car that is in motion?
We can see from the definition that a moving object can have large momentum if either its mass or its speed is large, or if both are. A truck has more momentum than a car moving at the same speed because the truck has a greater mass.
Why do heavy vehicles have low velocity but high kinetic energy?
The car has a lower mass, so it must have a higher velocity in order to have the same momentum as the truck. But since kinetic energy depends upon the square of the velocity, the higher car velocity matters much more than the lower mass.
Why do heavier objects have more kinetic energy?
More specifically, a more massive object will require more work in order to get from rest to a velocity v , and consequently have a higher kinetic energy, than a lighter object that goes from rest to the same velocity v .
How does mass and speed influence the kinetic energy of the moving object?
The kinetic energy of a moving object is directly proportional to its mass and directly proportional to the square of its velocity. This means that an object with twice the mass and equal speed will have twice the kinetic energy while an object with equal mass and twice the speed will have quadruple the kinetic energy.
How does mass affect kinetic energy?
The velocity at which an object is sent moving and the mass of the object both play a hand in the level of kinetic energy that object produces. Mass and kinetic energy have a positive relationship, which means that as mass increases, kinetic energy increases, if all other factors are held constant.
Why is it difficult to stop a heavy body as compared to a light body?
Thus the heavier body has a greater momentum than the lighter one.
Does heavier objects have more momentum?
Two objects of different mass are moving at the same speed; the more massive object will have the greatest momentum.
Can a lighter object have more momentum than a heavier one how?
Can a lighter object have more momentum than a heavier one? How? No, because momentum is independent of the velocity of the object.
Which has more momentum a heavy truck at rest or a moving skateboard?
Which has a greater momentum, a heavy truck at rest or a moving skateboard? A moving skateboard has a greater momentum than a heavy truck at rest.