an asrronaunt on the moon drops a tool box mass 3kg it falls from rest and its kinetic energy as it hits the surface is 0.96 joules at which speed does the tool box hit the surface of the moon
Answers
Answer:
No because the moon is lighter than earth and the gravitational accretion is lesser so it will drop slowly
Explanation:
hope it's help you
Answer:
The speed of the toolbox when it hit the ground is 0.8 m/s.
Explanation:
Given,
Mass of the toolbox, m = 3kg
acceleration due to gravity on the moon = 1.625 m/s²
Height at which toolbox falls = h
KE = 0.96 joules
As the toolbox falls from a height. So, the initial energy is potential energy, and the toolbox falls with some speed so the final energy is kinetic energy.
Using the law of conservation of energy,
Ei = Ef
⇒ PE = KE
⇒ mgh = (1/2)mv²
⇒ v = √2gh -(i)
KE = (1/2)mv² = (1/2)×m×2gh
⇒ 0.96 = mgh
⇒ 0.96 = 3×1.625×h
⇒ h = 0.96/(3×1.625)
Now, putting the value of h in equation (i), we get
v = √2×1.625×0.96/(3×1.625)
v = √2×0.96/3
v = √2×0.32
v = √0.64
v = 0.8 m/sec
Hence, the speed of the toolbox when it hit the ground is 0.8 m/s.
To learn more about the speed, click on the link below:
https://brainly.in/question/427506
To learn more about the law of conservation of energy, click on the link below:
https://brainly.in/question/28970104
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