# physics

posted by .

An object of mass 10 kg is pulled along a horizontal floor of a distance 3 m. The friction force between the object and the floor is 50 N. What is the minimum work done by the pulling force?

• physics -

This was actually a multiple choice question. The answer given was 450J. I'm guessing, they added the weight to frictional force. But thing is, the object moved horizontally, so how could one just do this -> (100+50) x 3.

## Similar Questions

1. ### Physics

A child pushes a toy box 4.0m along the floor with a force of 6.00N directed downward at an angle of 37.0 degrees to the horizontal. a. How much work does the child do?
2. ### Physics

Sally applies a horizontal force of 500 N with a rope to dtag a wooden crate across a floor with a constant speed. The rope tied to the crate is pulled at an angle of 67.5 degrees. a) How much force is exerted by the rope on the crate?
3. ### physics

An object of mass 10.0 kg is released from the top of an inclined plane which makes an angle of inclination of 30 degrees with the horizontal. The object slides along the inclined plane. The questions refer to the instant when the …
4. ### physics

A 10-KG block is pulled along a rough horizontal floor by a 12-N force acting at a 30 degrees angle with respect to the horizontal. The block accelerates at 0.1 m/s2. Calculate A....... the weight of the block B...... the force of …
5. ### physics

A 10-KG block is pulled along a rough horizontal floor by a 12-N force acting at a 30 degrees angle with respect to the horizontal. The block accelerates at 0.1 m/s2. Calculate A....... the weight of the block B...... the force of …
6. ### Physics

A 10-KG block is pulled along a rough horizontal floor by a 12-N force acting at a 30 degrees angle with respect to the horizontal. The block accelerates at 0.1 m/s2. Calculate A....... the weight of the block B...... the force of …
7. ### Phyics

If a 68kg object is being pulled across the hard floor with a horizontal force of 400N... a. What would the acceleration of the object be if it was on a frictionless floor?
8. ### physics

1. A boy drags a wooden crate with a mass of 20 kg, a distance of 12 m, across a rough level floor at a constant speed of 1.50 m/s by pulling on the rope tied to the crate with a force of 50 N. The rope makes an angle of 25¡ã with …
9. ### physics

a 2.0kg object is pulled horizontally by a force of 6.3N along the floor where the coefficient of kinetic friction is o.24. what is the object acceleration
10. ### Physics

Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. The work done on object A is 500J. After the force pulled each object, object A moves twice as fast …

More Similar Questions