No fixed answer, depends on the surface.
Moving at constant velocity doesn't require any force, regardless of the object's mass or where it is.
That depends on a variety of circumstances. Mainly:Whether you pull it horizontally or up an inclined surface; in the latter case, you need more force. If you go down an inclined surface, you may even need a force in the opposite direction to stop it.Also, on the coefficient of friction. Assuming a horizontal movement, you can make the force required become quite low - for example, if the object you want to move is on a cart with wheels, or if it rests on a well-lubricated surface.
A push or a pull is a force
The less sag you want, the more force would be required to pull the wire.
force
That's a trick question, right? Jupiter has no surface.
Moving at constant velocity doesn't require any force, regardless of the object's mass or where it is.
Balanced forces means the net force is zero, but net force can also be positive or negative numbers. If I pull a block with a force of 10N to the right, and you pull it with a force of 10N to the left, the net force on the block is zero, thus balanced forces. If I start to pull with a force of 20N to the right, but you still pull 10N to the left, the net force on the block is 10N to the right, thus causing acceleration of the block to the right, thus unbalanced forces
It's 320 N. Since the friction force is in the direction opposite to the motion, thepulling force and the friction force balance, the net horizontal force on the box iszero, and its speed is therefore constant.
The choices are:A. Doubles the force required to lift the blockB. Decreases the force required to lift the blockC. Makes the block easier to lift by changing the direction of the force needed to lift it.D. Decreases the force required and changes the direction of the force required
pull ups horizontaly
A extra pair of hands would work. The more force
That depends on a variety of circumstances. Mainly:Whether you pull it horizontally or up an inclined surface; in the latter case, you need more force. If you go down an inclined surface, you may even need a force in the opposite direction to stop it.Also, on the coefficient of friction. Assuming a horizontal movement, you can make the force required become quite low - for example, if the object you want to move is on a cart with wheels, or if it rests on a well-lubricated surface.
Heavier (more massive) objects require more force to move than lighter objects. The formula is F = ma (force is equal to mass times acceleration). The same force applied to a more massive object will provide less acceleration (motion).
A push or a pull is a force
The less sag you want, the more force would be required to pull the wire.
Force can be both a push or a pull