A block of mass 4.20 kg is pushed up against a wall by a force P that makes an angle of θ = 50.0°angle with the horizontal as shown below. The coefficient of static friction between the block and the wall is 0.270.

A block of mass 20kg is pushed against a vertical wall by force P. The coefficient of friction between the surface and the block is 0.2. If theta = 30 degrees, what is the minimum magnitude of P to hold the block still?I understand that in order for the block to sit motionless, the net forces acting on the block must be zero. I set my equation to be Net Force = 0 = Psin(theta) + Force Friction - Force Gravity.Which I rearranged as P = (Force Gravity - Force Friction)/sin(theta) or P = (mg-μ(mg))/sin(theta)Doing this gives me a value of 313.6N rather than 202.9N which I should be getting. What am I doing wrong?

i never practiced a problem like this in chapter six and need some help working through it as i’m rusty on the concepts of 6

A wedge with mass M rests on a frictionless m horizontal tabletop. A block with mass m is placed on the wedge and a horizontal F force F is applied to the wedge. There M is no friction between the block and the wedge. For a = "/7, what must the magnitude of F be if the block is to remain at a constant height above the tabletop? (g is the magnitude of the gravitational acceleration. Take m = 1 kg, M = 5 kg and g = 10 m/s².) %3D (a) 29 N (b) 35 N (c) 44 N (d) 60 N (e) 104 N

Two blocks with masses Mj and M2 are connected by a massless string that passes over a massless pulley as shown. M has a mass of 2.25 kg and is on an incline of 0 41.5° with coefficient of kinetic friction u = 0.205. M2 has a mass of 5.25 kg and is on an incline of 02 = 34.5° with coefficient M2 of kinetic friction u, = 0.105. The two-block system is in M1 motion with the block of mass M2 sliding down the ramp. Find the magnitude az of the acceleration of M, down the incline. Figure is not to scale. a2 = m/s?

78.0 kg on a string of Consider a conical pendulum with a bob of mass m = length L (Consider +î to be towards the center of the circular path and +ĵ to be 10.0 m that makes an angle of 0 = 7.00° with the vertical. %3D upward.) L m (a) Determine the horizontal and vertical components of the force exerted by the string on the pendulum. NÎ + (b) Determine the radial acceleration of the bob. m/s2

Problem 06: Find the missing load (F) in the figure given the resultant of these three parallel loads is 30KN acting up at 10 meters to the right of A. Compute the magnitude and position of the missing load. ( 40 KN 60 KN 2 mtrs 1l mtrs

An object of mass 0.500 kg is released from the top of a building of height 7.00 m. The object experiences a horizontal constant force of Fwind=(-1.901) due to the wind blowing. Use the standard rectangular coordinate system with the +x axis to the right, +y axis vertically up, and +z axis coming out toward you. Take the origin of the coordinate system to be at the point of release of the object. (a) Find the time it takes for the object to strike the ground. (b) What is the acceleration of the object? Express your answer in vector form. m/s2 (c) What is the displacement of the object before it hits the ground? Express your answer in vector form. d m

An object weighing 500kg is to be pulled by a man by exerting a force P. Force P is inclined at an angle of 25 deg. measured from the positive axis. The object and the floor has a coefficient of friction: static 0.35 and dynamic = 0.15. 5. What should be the magnitude of P to cause an acceleration to the object equal to 0.5i m/s^2. Express your answer in unit of kN. 6. From item 5, when the required value of P is applied, what would be the magnitude of the velocity of the object after 10s? Express your answer in unit of m/s 7. From item 5, when the required value of P is applied, what would be the total distance travelled by the object after 10s? Express your answer in unit of m. The acceleration should be 0.5i m/s^2.