Question

A dog weighing 25 kg, while chasing a cat, jumps over a fence of height 1.6 m. What is the potential energy of dog at the top of fence ?(Take gravity due to earth 'g'=10 m s-2 ) *​

Answer 1

Explanation:

Mass of the dog= m=25 kg

Height of fence= h= 1.6 m

Acceleration due to gravity=g=10 m/s²

∴Potential energy of dog= m.g.h

                                        = 25×10×1.6

                                        = 25×16

                                        = 400 kgm²/s²

                                        = 400 J

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