- #1

- 7

- 0

Three blocks rest on a frictionless, horizontal table (see figure below), with m1 = 6 kg and m3 = 14 kg. A horizontal force F = 111 N is applied to block 1, and the acceleration of all three blocks is found to be 3.4 m/s2

(a) Find m2.

For this I got M2=12kg It was wrong

I did F=ma for both blocks

F=6x3.4=20.4

F=14x3.4=47.6

111-20.4-47.6=42.6

42.6/3.4=12

I think I have to use gravity 9.8?

(b) What is the magnitude of the normal force between blocks 2 and 3?