What is the net force acting on a falling 1-kg ball if it encounters 2 n of air resistance?

Net Force= -7.8N

Explanation:

fist start by solving the weight of the ball, this means the force pushing the ball down and the mass of the ball combined. we know that the force acting on the ball is gravity. the force of gravity is equivalent to 9.8m/s^2

weight formula w=mg. w= weight m= mass g= gravity

w=1kg(9.8m/^2)

w=9.8kg.m/s^2

w=9.8N

Simply add the two forces together to get the net force. The weight 9.8N is negative since it is directed downwards, while the air resistance 2N is positive since it is directed upwards.

Fnet= -9.8N+2N

Fnet= -7.8N

the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.