# physics

Ice fishing equipment weighing 3,000 N is pulled at a constant speed V = 0.5 m/s across a frozen lake by means of a
horizontal rope. If the coefficient of kinetic friction is 0.05, what is the work done (in J) by the fisherman in pulling the
equipment a distance of 500 m?

1. Just an explanation without numbers would be awesome, i just want to understand the correct steps to take.

Thanks!

posted by Drew
2. W= (F(fr),s) = F(fr) •s•cosα.
α= 0, cosα= 1
F(fr)=μ•N=
W= μ•mg •s = 0.05•3000•500 =

posted by Elena
3. thanks, but how come m is not in kg?

posted by Drew
4. weight= mg = 3000 N
m= weight/g=3000/9.8 =306.12 kg

posted by Elena

## Similar Questions

1. ### physics

10. A 2-kg object is moving at 3m/s. A 4-N force is applied in the direction of motion and then removed after the object has traveled an additional 5m. The work done by this force is: A. 12 J B. 15 J C. 18 J D. 20 J E. 38 J ans: D
2. ### physics

Camping equipment weighing 6000 N is pulled across a frozen lake by means of a horizontal rope. The coefficient of kinetic friction is 0.05. The work done by the campers in pulling the equipment 1000 m at constant velocity is: We

A sled loaded with bricks has a total mass of 18.0 kg and is pulled at constant speed by a rope inclined at 40.0o above the horizontal. The sledge moves a distance of 16.0 m on a horizontal surface. The coefficient of kinetic
4. ### Physics URGENT!!!

A sled loaded with bricks has a total mass of 18.0 kg and is pulled at constant speed by a rope inclined at 40.0o above the horizontal. The sledge moves a distance of 16.0 m on a horizontal surface. The coefficient of kinetic

A sled loaded with bricks has a total mass of 18.0 kg and is pulled at constant speed by a rope inclined at 40.0o above the horizontal. The sledge moves a distance of 16.0 m on a horizontal surface. The coefficient of kinetic
6. ### Physics URGENT!!!

A sled loaded with bricks has a total mass of 18.0 kg and is pulled at constant speed by a rope inclined at 40.0o above the horizontal. The sledge moves a distance of 16.0 m on a horizontal surface. The coefficient of kinetic
7. ### Physics

A crate with a total mass of 18.0 kg is pulled by a person along the floor at a constant speed by a rope. The rope is inclined at 20 degree above the horizontal, and the crate moves 20.0 m on a horizontal surface. The coefficient
8. ### physics

A sled loaded with bricks has a total mass of 23.0 kg and is pulled at constant speed by a rope inclined at 40.0o above the horizontal. The sledge moves a distance of 12.0 m on a horizontal surface. The coefficient of kinetic
9. ### physics

A cart loaded with bricks has a total mass of 18 kg and is pulled at constant speed by a rope. The rope is inclined at 30.4  above the horizontal and the cart moves 21.5 m on a horizontal floor. The coefficient of kinetic
10. ### Physics

A cart loaded with bricks has a total mass of 28.5 kg and is pulled at constant speed by a rope. The rope is inclined at 28.1 ◦ above the horizontal and the cart moves 13.9 m on a horizontal floor. The coefficient of kinetic

More Similar Questions