In the figure below, the mass is 4.20 kg, T = 19 N, and theta = 32 degrees. The
ID: 1597315 • Letter: I
Question
In the figure below, the mass is 4.20 kg, T = 19 N, and theta = 32 degrees. The surface does have friction, with mu_s = .45 and mu_k = .39. If x is horizontal and y is vertical, What is Tx? What is Ty? What is the Normal Force? What is the friction? What is the net force on the block in the x-direction? What is the net force of the block in the y-direction? What is the acceleration of the block? What will be the position of the block after 4 seconds if it starts from a position 3 m from the left of the origin at a speed of 5 m/sec right? What will be the velocity of the block at this time?Explanation / Answer
Normal Force N=mg-TsinQ
=4.2*9.8-10.068
=31.092 N
d) friction =u*N
=0.39*31.092
=12.126 N
e) Fx =16.112-12.126
=3.986 N
f) Fy=0
g) acceleration =Fx/m
=0.949 m/s^2