Question

An object takes 5 seconds to reach the ground from
height of sm on a planet. what is
of g on that planet.
the vawe​

Answer 1

Answer:

Solution. Hence, the value of g on the planet is 0.4 m/s2.

Explanation:

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Answer 2

Answer:

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the value of g on the planet is 0.4 m/s2.

Explanation:

Time taken, t = 5 seconds

Displacement, s = 5 metres

Initial velocity, u = 0 metres/second

Let the acceleration be a m/s2 .

When the acceleration is constant, initial velocity, acceleration, time taken and displacement are related by a simple formula:

s=ut+(1/2)at2

Therefore,

5=(0)(5)+(1/2)(a)(52)

a×(25/2)=5

a=5/(25/2)

a=10/25

a=2/5

a=0.4

Therefore, the acceleration is 0.4m/s2 .

This is the acceleration due to gravity on that planet.

Please note that you can't call ‘acceleration due to gravity’ as ‘gravity’.

Gravity refers to gravitational force. Gravitational force (gravity) due to the planet on any mass ‘m’ (expressed in kilograms) = (0.4×m) newtons