Question

27. A 70.-kilogram astronaut has a weight of 560
Newtons on the surface of planet Alpha. What is
the acceleration due to gravity on planet Alpha?
A) 0.0 m/s2
B) 8.0 m/s2
C) 9.8 m/s2
D) 80. m/s2

Answer 1

The acceleration due to gravity on planet Alpha is B) 8.0 m/s2

Explanation:

The weight of a body is given by:

$W=mg$

where

m is the mass of the body

g is the acceleration of gravity at the location of the body

In this problem, we have:

m = 70 kg is the mass of the astronaut

W = 560 N is the weight of the astronaut on the surface of planet Alpha

Therefore, we can re-arrange the equation to find g, the acceleration of gravity on the planet:

$g=\frac{W}{m}=\frac{560}{70}=8.0 m/s^2$

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