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How would you measure the force needed to lift 50kg of shingles onto a roof using a pulley?
50 kg (on Earth) weighs about 110 pounds. If you're using a simple, single
pulley with a rope passing over it, then that's the pull you need on the rope to
lift the bundle of shingles. If you're using a block and tackle arrangement of
multiple pulleys, then you'll get away with much less pulling force on the rope,
but you'll have to pull the rope much farther.
What else can I help you with?
Which machine changes the direction of force needed to do a task without changing the size of force needed?
A pulley can do that.
Why is a pulley a force multiplier?
A pulley is a force multiplier because it allows a person to lift a heavy object with less force than would be needed without the pulley. By redirecting the force needed to lift the object, a pulley system can increase the efficiency of the process and reduce the amount of force required.
Which machine changes the direction of force needed to do a task without changing the size or force needed?
A pulley system is a machine that changes the direction of the force needed to do a task without changing the size or force needed. It allows you to pull downwards to lift an object upwards.
Why does a moveable pulley reduce the effort force?
A moveable pulley reduces the effort force needed because it changes the direction of the force applied. By pulling down on one end of the rope attached to the pulley, you can raise the load with only half the force needed to lift it directly.
How does a moveable pulley change the input force?
A moveable pulley reduces the amount of input force needed to lift an object. By attaching the pulley to the object being lifted, the force needed to move the object is distributed between the pulling force and the weight of the object itself, making it easier to lift.
Which machine changes the direction of force needed to do a task without changing the size of force needed?
A pulley can do that.
Why is a pulley a force multiplier?
A pulley is a force multiplier because it allows a person to lift a heavy object with less force than would be needed without the pulley. By redirecting the force needed to lift the object, a pulley system can increase the efficiency of the process and reduce the amount of force required.
Which machine changes the direction of force needed to do a task without changing the size of the force needed?
A pulley can do that.
Which machine changes the direction of force needed to do a task without changing the size or force needed?
A pulley system is a machine that changes the direction of the force needed to do a task without changing the size or force needed. It allows you to pull downwards to lift an object upwards.
Why does a moveable pulley reduce the effort force?
A moveable pulley reduces the effort force needed because it changes the direction of the force applied. By pulling down on one end of the rope attached to the pulley, you can raise the load with only half the force needed to lift it directly.
How does a moveable pulley change the input force?
A moveable pulley reduces the amount of input force needed to lift an object. By attaching the pulley to the object being lifted, the force needed to move the object is distributed between the pulling force and the weight of the object itself, making it easier to lift.
What is a simple machine that changes the direction of force needed to move an object but not the amount of force needed?
A pulley is a simple machine that changes the direction of the force needed to move an object without changing the amount of force required. By using a pulley, you can apply a downward force to lift an object upwards.
How did the pulley affect the amount of force needed?
A pulley reduces the amount of force needed to lift an object by distributing the load over multiple ropes and wheels. It allows you to lift heavier objects with less effort by changing the direction of the force required to lift the load.
What is the quantity that measure how much a machine multiplies force?
it is the pulley system
What force is required to lift something on a pulley?
The force required to lift an object using a pulley system depends on the weight of the object being lifted. The force needed is equal to the weight of the object being lifted plus the force required to overcome any friction in the pulley system. The mechanical advantage provided by the pulley system can help reduce the amount of force needed to lift the object.
What pulley can lift weight with the least amount of force?
A fixed pulley can lift weight with the least amount of force. It changes the direction of the force needed to lift the weight but does not provide any mechanical advantage.
What is the difference between a fixed pulley and movable pulley?
The difference between a fixed pulley and a movable pulley is, the wheel of a fixed pulley does not move because the wheel is attached to a wall, ceiling, or other object. Unlike a fixed pulley, a movable pulley's wheel does move. The wheel on a movable pulley is not attached to a wall or other object. A fixed pulley changes work by changing the direction of a force. A movable pulley changes work by reducing the input force needed to lift heavy objects. A movable pulley changes the direction of the input force and reduced it. A movable pulley also increases the output force.
