Question

Assume friction exists between each adjacent pair of boxes, and between the boxes and the floor. Draw a FBD for each box and for the hanging mass. Use as few variables as possible. 6. 50 kg 10 kg 100 kg

Answer 1

there is no friction between 50 kg and 10kg block's contact surface because there is no relative motion between them (since they both will stay on the wedge)

T is tension in the string

N_{​​​​​​1} is normal reaction b/w 5 and 50kg blocks, similarly for all other cases

and f_{​​​​​​1} is friction b/w 5 and 50 kg blocks and similarly for othe cases and g is acceleration due to gravity