Question

what is the mass of planet Mercury of an object that weights 784 Newton on the earth surface​

Answer 1

Answer:

Method 1: First of all what does an 80 kg person weigh on the Earth? Weight is the force of gravity, F = ma, where a = 9.8 m/s2 on the Earth. Thus, 80 kg weighs 80 kg x 9.8 m/s2 = 784 kg m/s2, or 784 Newtons. The surface gravity of Mercury is 0.39 that of Earth's (table 10-1), so 80 kg weighs 784 N x 0.39 = 306 N.

Explanation:

Brainleist Answer pls

Answer 2

Given: A body weighs 784 N on the earth's surface

To find: Mass of the object on planet Mercury

Explanation: Let the mass of the body be m and acceleration due to gravity on earth's surface be g.

g = 9.8 m/s ^2

Weight= 784 N

Now, the weight of the body is equal to the force exerted by gravity on a body.

Weight= Mass × gravitational acceleration

=> 784= m × g

=> 784 = m × 9.8

=> m = 784/9.8

=> m = 80 kg

The mass of the body is constant. It does not change on any planet.

Mass on Mercury

= Mass on Earth

= 80 kg

Therefore, the mass of the body on Mercury is 80 kg.