Answer to Question #183372 in Physics for Siya

Question

A rock of mass 1.50kg is released from rest at a height of 30m. Ignore air resistance and calculate; (a) its speed half way down (b) its speed on reaching the ground (c) its total mechanical energy

(i) at a height of 30m

(ii) its kinetic energy half way through

(iii) its potential energy on striking the ground 

Answer 1

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