An object rakes 5 second to reach the ground from a height of 5 meter o a planet? What is the value of 'g' on the planet?
Answers
In this question we will use kinematics equation.
Since we have the height and time we will use the following kinematics equation.
S = ut + 1/2gt²
Where :
S = height
u = initial velocity.
t = time in seconds
g = gravitational acceleration
In our case the initial velocity = 0
Doing the substitution we have :
5 = 0 × 5 + 1/2 × g × 5²
5 = 12.5g
g = 5/12.5
g = 0.4
The g on the planet is therefore 0.4m/s²
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Since we have the height and time we will use the following kinematics equation.
S = ut + 1/2gt²
Where :
S = height
u = initial velocity.
t = time in seconds
g = gravitational acceleration
In our case the initial velocity = 0
Doing the substitution we have :
5 = 0 × 5 + 1/2 × g × 5²
5 = 12.5g
g = 5/12.5
g = 0.4
The g on the planet is therefore 0.4m/s²
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