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A 9.0 kg hanging weight is connected by a string over a pulley to a 5.0 kg block sliding on a flat table If the coefficient of the sliding friction is 0.20 what is the tension in the string?
Wiki User
∙ 13y ago
Assume the table were frictionless, then Tension according to formula is given by":
T=m1m2g/(m1+m2) ,so
T= 9*5*9.8/(9+5) = 31.5N.
But now presence of friction will reduce it. So
Friction acting on mass on table= 0.2* its weight= 0.2*5*9.8=10N , so net tension in the string is T=31.5N-10 N=21.5N. and that is it!
Wiki User
∙ 13y ago
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What is the force that keeps you from sliding on an icy sidewalk kinetic friction static friction?
coefficient kinetic
Why sliding friction greater than rolling friction and if the area of contact is same?
The FORCE of Friction is INDEPENDENT of Surface Area. Only the 'Coefficient of Friction', and the Force between the two Surfaces. Sliding Friction is greater than Rolling Friction ONLY if the Coefficient of Friction is GREATER for the Sliding Surfaces.
What kind of friction requires more force to overcome rollingfriction or sliding friction?
Coefficient of rolling friction will always be less than that of sliding friction. Hence more force is required to overcome sliding friction. Because the force = coefficient of friction x normal force (ie weight of the body)
What value of the coefficient of friction the greater the resistance to sliding?
higher
The the value of the coefficient of friction the greater the resistance to sliding.?
higher
The value of the coefficient of friction the greater the resistance to sliding?
higher
What are the factors that determine the friction force between two sliding objects?
The normal force between the two objects and the coefficient of friction. Force of friction = normal force x coefficient of friction.
What is the difference between static friction and sliding friction?
Sliding friction is always less than the static friction by small amount.
What is more sliding friction or static friction?
static friction is higher in most cases, if you're talking about the coefficient of static or kinetic friction
The the value of the coefficient of friction the greater the resistance to sliding?
The larger the value of μ (aka Mu, the coefficient of friction, the greater the frictional force on an object. For instance, steel on nonlubricated steel has a μ of 0.58 while steel on lubricated steel has a μ of 0.06.
A sled of mass 50kg is pulled along snowcovered flat ground the static friction coefficient is 0.30 and the sliding friction coefficient is 0.10?
Just multiply the weight by each coefficient, add them together and multiply by 9.8
Define lubricity of plastic?
The inverse of it's sliding friction coefficient. It's slippery-ness.
