# physics

posted by Drew

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. Drew

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

Thanks!

2. Elena

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

3. Drew

thanks, but how come m is not in kg?

4. Elena

weight= mg = 3000 N
m= weight/g=3000/9.8 =306.12 kg

## Similar Questions

1. ### 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 never …
2. ### 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 friction …

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 friction …
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 friction …

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 friction …
6. ### 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 friction …
7. ### physics

A contestant in a winter games event pushes a 41.0 kg block of ice in the positive direction across a frozen lake as shown in the Figure (a). The coefficient of static friction is 0.1 and the coefficient of kinetic friction is 0.03.
8. ### 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 …
9. ### Physics

a 50 kg ice skater is skating on a frozen lake where the ice has a coefficient of friction of .08. How much force is required to push her across the ice at a constant velocity?
10. ### physics

A box weighing 87 lb is being pulled with a rope that exerts a force of 60. lb at an angle of 15 degrees with the horizontal. if the coefficient of kinetic friction is .35, what is the kinetic friction?

More Similar Questions