Question

A block of mass M is pulled with a rope that exerts a force of a magnitude F, causing it to slide over horizontal ground with kinetic coefficient of friction p (use "mu" when you input your answer). The force is applied at angle theta (use "theta" when you input your answer) above the horizontal shown below. Resolve F into components using the coordinate system shown: F_x, F_y =, Find the sum of the force components in the y-direction acting on the mass (in terms of N, M, g, F): sigmaF_y = Find the normal force of the ground acting on the mass: N = Find the net force in the x-direction acting on the mass (in terms of mu, F, M, g, theta): Sigma F_x = Part is not open to be viewed. It was due on Sun Oct 30 12:00:00 am 2016 (EOT), and answers will be available on Mon Dec 19 12:00:00 am 2016 (EST) Find the acceleration of the mass in the x-direction (in terms of mu, F, M, g, theta): a = The block has a normal force N, a friction force Ff, a gravitational force W, and F acting on it. Which of these relationships about the magnitudes of these forces is true when F is angled as shown and is just strong enough to keep the block moving at a constant speed along the ground?

Answer 1

[1] ans

the force on X-axis=>Fx=Fcos$\theta$

the force on y-axis =>Fy=F sin$\theta$

[2] ans

the force on y-axis=>Fy=mg-Fsin$\theta$+N

[3] ans

the normal force N=mg-Fsin$\theta$

[4] ans

the force on X-axis=>Fx=$\mu$[mg-Fsin$\theta$)

[5] ans

acceleration a=$\mu$g/[cos$\theta$+$\mu$sin$\theta$)