It is given that \(M\) and \(N\) move with acceleration \(a \mathrm {~m} \mathrm {~s} ^ { - 2 }\)
By forming two equations of motion show that
$$a = \frac { 1 } { 11 } g$$
19
The speed of \(N , 0.5\) seconds after its release, is \(\frac { g } { k } \mathrm {~m} \mathrm {~s} ^ { - 1 }\) where \(k\) is a constant. Find the value of \(k\)
19
State one assumption that must be made for the answer in part (b) to be valid.