answer:
yes
explanation:
At a separation of the surface of Earth (r=6400km) gravity wants pull the test mass closer and closer. ... So the work done by gravity is NEGATIVE. The gravitational potential energy is negative because us trying to do the opposite of what gravity wants needs positive energy.
A is a good example, i suppose.
Answer:
The mass of the body is 50 kg.
Explanation:
We have,
Force acting on a body is 100 N
Acceleration of the body is 2 m/s²
It is required to find the mass of the body. The force acting on a body is given by :
F = ma

So, the mass of the body is 50 kg.