Two blocks are connected by a light string that passes over a frictionless pulley. The block of
Question:
Two blocks are connected by a light string that passes over a frictionless pulley. The block of mass m1= 4 kg lies on a horizontal surface and is connected to a spring of force constant k =20 N/m. The system is released from rest when the spring is unstretched. The mass of the second block is m2=2 kg (Take g=9.81 m/s2.)
A) Calculate the distance, h, ?the hanging block of mass m2 falls before coming to rest, if there is no friction between the block of mass m1 and the surface. Provide your answer in meters.
B) What is the value of the potential energy stored on the spring after the block of mass m2 is hung? Provide your answer in Joules. (Assume there is no friction between the block of mass m1? and the surface, and the blocks move the same distance, h, as in part A.)
C) Calculate the distance, h, ?the hanging block of mass m2 ?falls before coming to rest, if the coefficient of kinetic friction between the block of mass m1 and the horizontal surface is 0.2. ?Provide your answer in meters.
D) What is the magnitude of the work done by friction? Provide your answer in Joules. (Assume the coefficient of kinetic friction between the block of mass m1 and the horizontal surface is 0.2 and the blocks move the same distance, h,as in part C.)
Thomas Calculus Early Transcendentals
ISBN: 9780321884077
13th Edition
Authors: Joel R Hass, Christopher E Heil, Maurice D Weir