If two objects have the same mass and a greater force is applied to one of the objects, the object which receives the greater force will change speeds more quickly.
No, acceleration is the rate of increase or decrease in the velocity of an object. An object at high velocity will have zero acceleration if its velocity is not changing. A slow moving object will have high acceleration if its velocity is changing quickly. Answer: The above is correct, but if you have... say a fast moving object in the earth's atmosphere, like a space shuttle entering the earth atmosphere, the faster it goes, the more force will be applied to it to slow it down by the air it has to pass through. So, its possible, that, if you give something a large velocity, like a base ball for example, it will be subject to larger resistance to motion force, which is proportional to the velocity squared and will consequently accelerate more in the opposite direction of motion.
It is very important not to get velocity and acceleration mixed up though. Velocity is the rate of change of displacement; acceleration is the rate of change of velocity. Simply having a high velocity in the absence of an atmosphere will not cause a greater acceleration by itself.
To sink, the object's density must be greater than the density of water.
Explanation:
How is the work done on an object related to speed?
The Work/Energy Equationsays that the work done on an object (by the net force on it) equals its change in kinetic energy. So, to figure out how much work is done on an object, just calculate the change in its kinetic energy... If the Force Acts in the Direction That the Object Moves: This force will tend to increase the object's speed.
Does the force change the speed of an object moving?
If the Force is Perpendicular to the Direction That the Object Moves. In this case, the force does not change the speed of the object - just its direction. Since the object's speed doesn't change, its kinetic energy doesn't change.
How does the kinetic energy of an object change with speed?
or changing direction, in which case the object's kinetic energy does not change. So, an object's kinetic energy will only change if the force acting on the object changes the object's speed. This will only happen if there is a component of the force in the direction that the object moves.
Can we pick up an object with a force of 1000 N?
Yes or No: If the maximum force a biceps muscle can exert is 1000 N, can we pick up an object that weights 1000 N? - no T or F: The forces applied by our muscles on our bone are usually several times larger than the forces we exert on the outside world with our limbs.
Answers & Comments
Answer:
If two objects have the same mass and a greater force is applied to one of the objects, the object which receives the greater force will change speeds more quickly.
Answer:
No, acceleration is the rate of increase or decrease in the velocity of an object. An object at high velocity will have zero acceleration if its velocity is not changing. A slow moving object will have high acceleration if its velocity is changing quickly. Answer: The above is correct, but if you have... say a fast moving object in the earth's atmosphere, like a space shuttle entering the earth atmosphere, the faster it goes, the more force will be applied to it to slow it down by the air it has to pass through. So, its possible, that, if you give something a large velocity, like a base ball for example, it will be subject to larger resistance to motion force, which is proportional to the velocity squared and will consequently accelerate more in the opposite direction of motion.
It is very important not to get velocity and acceleration mixed up though. Velocity is the rate of change of displacement; acceleration is the rate of change of velocity. Simply having a high velocity in the absence of an atmosphere will not cause a greater acceleration by itself.
To sink, the object's density must be greater than the density of water.
Explanation:
How is the work done on an object related to speed?
The Work/Energy Equationsays that the work done on an object (by the net force on it) equals its change in kinetic energy. So, to figure out how much work is done on an object, just calculate the change in its kinetic energy... If the Force Acts in the Direction That the Object Moves: This force will tend to increase the object's speed.
Does the force change the speed of an object moving?
If the Force is Perpendicular to the Direction That the Object Moves. In this case, the force does not change the speed of the object - just its direction. Since the object's speed doesn't change, its kinetic energy doesn't change.
How does the kinetic energy of an object change with speed?
or changing direction, in which case the object's kinetic energy does not change. So, an object's kinetic energy will only change if the force acting on the object changes the object's speed. This will only happen if there is a component of the force in the direction that the object moves.
Can we pick up an object with a force of 1000 N?
Yes or No: If the maximum force a biceps muscle can exert is 1000 N, can we pick up an object that weights 1000 N? - no T or F: The forces applied by our muscles on our bone are usually several times larger than the forces we exert on the outside world with our limbs.