The 75-lb force P is applied to the 160-lb crate, which is stationary before the force is applied. Determine the magnitude and direction of the friction force F exerted by the horizontal surface on the crate. The friction force is positive if to the right, negative if to the left. Assume μ = 0.50, μ = 0.38.

Q: DETERMINE THE SMALLEST FORCE P REQUIRED TO LIFT THE 200KG-CRATE. THE COEFCIENT OF STATIC FRICTION AT…

A:

Q: 7. Determine the smallest force P that the worker must apply to the bar CD to prevent the…

A: Step 1: Step 2: Step 3: Step 4:

Q: The coefficients of static and kinetic friction between the crate and the floor are us = 0.3 and μk…

A: Given,  W = 150 lb P = 222 lb Theta = 30°

Q: 150-lb block is placed on a 33° incline and released from rest. The coefficient of static fric 0.46.…

A:

Q: A 50-kg crate is lying on a horizontal plane. A pulling force P is applied to the crate by a rope…

A: a) Before the body moves the resistance will be due to static friction, hence to cause the motion we…

Q: Determine the minimum force P required to push the crate up the plane. The crate has a mass of 28 kg…

A: The crate is assumed to be stable, then the force applied to move it upward can be calculated by…

Q: Situation 6: Determine the smallest horizontal force P required to lift the 200-kg crate. The…

A:

Q: 6. A horizontal force of P-100 N is just sufficient to hold the crate from sliding down the plane,…

A: Step 1:Step 2:Step 3:Step 4:Step 5:Therefore,

Q: 6 m B 60 KN ļº 60 kN P 60 KN 4 panels at 8 m = 32 m EA = constant Sw E Determine the force in member…

A: Given values: Consider the truss given. Using method of joints and method of sections the unknown…

Q: 2. Compute the horizontal force P required to prevent the block from sliding down the plane for the…

A:

System of Forces

A force is an external influence or agent that changes the state of a system. According to Newton's second law, the force applied to a body is proportional to the change in momentum of a body. Hence, whenever a force is applied to a body, its momentum changes. If the body is at rest, under the action of force, its state of rest changes to motion. In other words, the magnitude of the momentum of the body changes from zero to a measurable value. Similarly, if the body possesses some initial velocity, it has some associated momentum, the effect of force can cause the body to halt or come to rest, that is, the momentum reduces to zero.