How much kinetic energy does a 7.2-kg dog need to make a vertical jump of 1.2 m?

The acceleration due to gravity is [tex]9.8 \, \text{m/s}^2[/tex].

E k ​ = m g h m = 7.2 k g g = 9.8 m / s 2 h = 1.2 m E k ​ = 7.2 ⋅ 9.8 ⋅ 1.2 = 84.672 [ s 2 k g m 2 ​ ] = 84.672 [ J ]

Answered by Anonymous | 2024-06-10

Assuming that no energy is wasted, Use the equation Gpe=mgh Mass gravity height 1.2 7.2 9.8= 84.672 (The answer might be wrong I did it in my head)

Answered by xADAM74x | 2024-06-10

The 7.2-kg dog needs approximately 84.67 Joules of kinetic energy to make a vertical jump of 1.2 meters. This energy is calculated using the potential energy formula, where kinetic energy equals the gravitational potential energy at that height. Thus, the formula uses the dog's mass, the height of the jump, and the acceleration due to gravity.
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Answered by Anonymous | 2024-09-26