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| style="height:20px; width:200px; text-align:center;" |A 3.6kg [[cat]] jumps [[vertical]]ly with an initial [[Kinetic Energy Store|kinetic energy]] of 70J. Calculate the maximum [[height]] that the [[cat]] will be able to reach in this jump correct to two [[Significant Figures|significant figures]].

| style="height:20px; width:200px; text-align:center;" |A vacationing [[astronaut]] takes a bow and arrow to [[The Moon]]. The bow has an initial [[Elastic Potential Energy Store|elastic potential energy store]] of 400J before releasing the arrow [[vertical]]ly. Given the [[mass]] of the arrow is 120g; calculate the maximum [[height]] that the arrow will reach before returning to the ground correct to two [[Significant Figures|significant figures]].