Question: i need part ll g-j answer clealry please Given: The box crate is being lifted up the plane, which is inclined al an angle d
i need part ll g-j answer clealry please
Given: The box crate is being lifted up the plane, which is inclined al an angle d using the motor-winch Af and the cord and pulley arrangement shown on the right. The weight (F-) of the crate is 500 Lb. The surface on which the crate rest is very rough, and the coefficient of static friction () between the crate and the inclined plane (supporting surface) is 0.61. For this problem, assume that the angle is 26". Kinematics: a) Label the pulley arrangement and derive the four kinematic equations which describe the crate's motion (i.c., position, displacement, velocity, and acceleration) h) Find the speed ve at which the cable mud be taken in by the motor in order to move the crate up the plane with a speed of 1 frisee, c) Find the relative velocity of the point P with respect to point A on the cord, that is, ve, if the crate moves up the plane with a speed of I ft/sec. Part ! (Before Motion Starts) Assuming the crate is initially at rest AND the tension in the cord are zero. d) Draw and Annotate a free body diagram (FBD) [ with forces and inertial terms] of the crate as a result of its contact with the pulleys and inclined plane. Hint: You should observe that Newton's ?" Law also works with a body which is in static equilibrium. e) Derive the 2nd Law equations of motion based on the developed FBD. f Determine the magnitude of the frictional force that keeps the crate from sliding down the incline. Part II (Impending Motion) The motor is turned on and the winch begins to wind the cord so that tension in the cord-pulley system begins to develop. The tension (F.) in the cord is given as a function of time, Fr = (20r) Lb, where / is time in seconds and after 5 seconds, the value of Fe is capped at 100 Lb. Assuming the crate is at the onset of motion up the incline. g) Draw and Annotate a free body diagram (FBD) [ with forces and incrtial terms] of the crate as a result of its contact with the pulleys and inclined plane. h) Derive the 2nd Law equations of motion based on the developed FBD. Determine the magnitude of the frictional force that keeps the crate from sliding up the incline at the onset of motion. j) Determine the magnitude of the tension in the cord that is present at the onset of motion, and how much time does it take for the crate's motion to start Part III (Motion Occurs) Now that motion up the incline has begun; the coofficiant of friction drops by about 15%%. So, the value of the kinetic coefficient of friction (za) is 0.52. k) Draw and Annotate a free body diagram (FBD) [ with forces and inertial terms] of the crate as a result of its contact with the pulleys and inclined plane. Summer 2021 Tuesday. July 20. 2021 MEEN 225 (Dynamics) - Quiz Last Name My Page I) Derive the 2nd Law equations of motion based on the developed FBD, m) Derive the acceleration of the crate as a function of time after the crate's motion starts. n) Derive the velocity of the crate as a function of time after the crate's motion starts