QI) (A block of mass m-10 kg is on a frictionless horizontalsurface and pushed against the spring, whose spring constant k-240 N/m,compressing the spring by 3m. The block is then released from rest. The blockis observed to move up the incline and come back down, hitting and771compressing the spring by a maximum distance of Im. The inclined plane has www.friction and makes an angle of 9 = 37° with the horizontal.a) Find the work done by friction from the moment the block is released till the moment it strikes the spring again.b) What is the maximum height the block can reach?c) Find the kinetic friction coefficient between the block and the inclined plane.

Given, m=10 kgk=240 N/m∆x=3mθ=370

Q1) ( A block of mass m-10 kg is on a frictionless horizontal surface and pushed against the spring, whose spring constant k-240 N/m, compressing the spring by 3m. The block is then released from rest. The block is observed to move up the incline and come back down, hitting and compressing the spring by a maximum distance of Im. The inclined plane has friction and makes an angle of 8 = 370 with the horizontal. k www W m a) Find the work done by friction from the moment the block is released till the moment it strikes the spring again. b) What is the maximum height the block can reach? c) Find the kinetic friction coefficient between the block and the inclined plane.

Q1) ( A block of mass m-10 kg is on a frictionless horizontal surface and pushed against the spring, whose spring constant k-240 N/m, compressing the spring by 3m. The block is then released from rest. The block is observed to move up the incline and come back down, hitting and compressing the spring by a maximum distance of Im. The inclined plane has friction and makes an angle of 8 = 370 with the horizontal. k www W m a) Find the work done by friction from the moment the block is released till the moment it strikes the spring again. b) What is the maximum height the block can reach? c) Find the kinetic friction coefficient between the block and the inclined plane.