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gravity
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∙ 13y ago
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Is an object's velocity always proportional to the force acting on it at that instant?
No. But its acceleration is.
What is the force produced by gravity acting on mass?
gravitational force, which is always attractive (unlike the other three forces)
What are two forces that are always acting on an object?
The two forces are gravity and normal force.
What are some clues that show us that a force is acting?
if there is a push or pull occuring
What is the force acting on flywheel?
The force acting on flywheel is called centrifugal force.
Is an object's velocity always proportional to the force acting on it at that instant?
No. But its acceleration is.
Why do we experience weightlessness in space?
Because there are no contact forces acting on us. Gravity is the only acting on us. A body experiences weightlessness when gravity is the only force acting on it.
What is the force produced by gravity acting on mass?
gravitational force, which is always attractive (unlike the other three forces)
What are two forces that are always acting on an object?
The two forces are gravity and normal force.
What is meant by all forces in pairs?
When a force is acting on an object, there is always another equal and opposite force acting upon it. For example; a car that is travelling forward has a force of 'Thrust' which is pulling the car forward, as this occurs, 'Drag' or 'Air resistance' is also acting upon the car.
What are some clues that show us that a force is acting?
if there is a push or pull occuring
What is the force acting on flywheel?
The force acting on flywheel is called centrifugal force.
Can a force acting perpendicular on a body cancal a force which is acting horizontally on the same body?
no. a force acting perpendicularly on a body cannot cancel a force which is acting horizontally on the same body.!!!!
Rolling friction always reduce the net force acting against an object's motion to zero?
Yes, rolling friction always reduces the net force to zero.
What will happen if the net force acting on a stantionary object us zero?
It remains stationary
How can you complete the sentence so it is always true the greater the net force acting on an object?
the greater its acceleration is
When can forces be added together to find the net force upon an object?
Yes, when all the forces acting on a body have been resolved, the final force is known as the 'net force' acting on that body.
