A 49.0 kg child sits on the top of a slide that is located 1.80 m above the ground. After her descent, the child reaches a veloc

Question

2 years ago

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A 49.0 kg child sits on the top of a slide that is located 1.80 m above the ground. After her descent, the child reaches a veloc

ity of 3.00 m/s at the bottom of the slide. Calculate how efficiently the potential energy is converted to kinetic energy. Round to the nearest tenth.

Physics

1 answer:

Alla [95] · Answer 1 · 2023-05-30T11:13:35+03:00

For the potential energy is converted to kinetic energy is mathematically given as

n=24.44%

<h3>What efficiency of the potential energy is converted to kinetic energy?</h3>

Generally, the equation for the potential energy is mathematically given as

Ei=mgh

Ei=49.0\*9.81* 1.8

Ei=865.24J

Final total energy

K.E=0.5mv^2

K.E=0.5*49.0* (3.00)^2

K.E=211.5J

In conclusion, efficiency

n=Ef/Ei*100
n=211.5*865.24*100

n=24.44%