A sled of mass 14kg is on a hill inclined at 25 degrees to the horizontal. Friction is negligible. The sled is held at rest by a pole?
a pole higher up the incline, parallel to the hill.
a) Calculate the magnitude of the tension in the rope.
b) Calculate the magnitude of the normal force on the sled.
- oubaasLv 74 weeks agoFavorite Answer
tension T = m*g*sin 25° = 14*9.806*0.423 = 58 N
normal force N = m*g*cos 25° = 14*9.806*0.906 = 124 N (120 with just 2 sign. digits)
- NCSLv 74 weeks ago
b) normal force for an object on an incline is
Fn = m*g*cosΘ
For your values, Fn = 124 N
a) For equilibrium, tension = downslope component of weight
T = m*g*sinΘ
For your values, T = 58 N