Explanation:
First convert the speed into m/s and time into seconds
How are scientific theories different than laws or hypotheses?
2 answers:
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Answer: 0.5 m
Explanation:
Given
Mass of the person is
Trampoline launches the person into the air up to height of
Force experience by springs is
Here, the work done on displacing the springs is equivalent to the Potential energy acquired by the person i.e.
Answer:
option C
Explanation:
given,
mass of the three planet is same
radius of the planets are
R₁ > R₂ > R₃
expression of escape velocity
G is the gravitational constant
M is the mass of the planet
R is the radius of the planet
from the above expression we can clearly conclude that the escape velocity is inversely proportional to the radius of the Planet.
radius of planet increases escape velocity decreases.
Hence planet 3 has the smallest radius so the escape velocity of the third planet will be maximum.
The correct answer is option C