Tutorial Problems

$($a$)$ Explain briefly the principle of the conservation of Linear Momentum

$($b$)$ A pile driver, mus $1$ tonne, falls freely through a distance of $5m$ before striking the pile, mass $0\mathrm{.}5$ tonnet. When the pile is nearly fully driven, the average renistance is $700W.$ Determine the pesetration per blow at that itage and exaluate the kinetic energy lost at impact.

$1$ false

$5m$

$$

$q,$

$0\mathrm{.}5$ torne