Homework Help: Physics

Posted by Sandhu on Saturday, October 24, 2009 at 9:16pm.

(a).A 220-kg sleigh is pulled by one horse at constant velocity for 0.90 km on a snowy, horizontal surface, the coefficient of kinetic friction between the sleigh runners and snow is 0.27. What power must the horse deliver to the sleigh for the trip to take 9 minutes?

(b) Image a motor to lift heavy objects.What must be the minimum power of the motor to lift 750-kg load at 1.0 m/s?

Physics - bobpursley, Saturday, October 24, 2009 at 11:09pm
Power=work/time= force*distance/time
= mg*mu*900/timein secnds

power= mg*velocity

Answer this Question

Related Questions

physics - A 140 kg sleigh is pulled by one horse at a constant velocity for a ...
Physics - A horse is trotting along pulling a sleigh through the snow. To move ...
Physics - A horse is trotting along pulling a sleigh through the snow. To move ...
Physics - A horse is trotting along pulling a sleigh through the snow. To move ...
Physics - A 22.0 kg sled is being pulled across a horizontal surface at a ...
Physics II Honors - A 23.0 kg sled is being pulled across a horizontal surface ...
College Physics! - Is there any way i can just get these problems set up? I just...
physics - A dray horse is being pulled by a rope across a level plow field by a ...
physics - A dray horse is being pulled by a rope across a level plow field by a ...
physics - A dray horse is being pulled by a rope across a level plow field by a ...

For Further Reading

First Name:
School Subject:
Answer: