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A small dog is trained to jump straight up a distance of 1.1 m. How much kinetic energy does the 7.7 kg dog need to jump this high?
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5 votes
5 votes
A small dog is trained to jump straight up a distance of 1.1 m. How much kinetic energy does the 7.7 kg dog need to jump this high?

User Marcosbernal
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1 Answer

15 votes
15 votes

Answer:

83.09 J

Step-by-step explanation:

The potential energy at the point of the top of the jump is represented by the equation


mgdeltah

when the dog jumps, all the potential energy converts to kinetic energy (1/2mv^2). Plugging in the values:

(7.7)(4.184)(1.1) = 83.0907 J

User Vmpn
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