Aman fell out of an airplane and barely survived. he was moving at a speed of 100m/s just before landing in deep snow on a mountain side. experts estimated that the average net force on him was 600 n as he plowed through the snow for 10 s. what was his mass, in kg

Mass in kg will be 60 kg

Explanation:

We have given initial speed of the man u = 100 m/sec

And final speed v = 0 m/sec

Time is given, t = 10 sec

So acceleration

Force is given , F= 600 N

From Newton's law we know that F = ma

So

mass = 60 kg

So mass in kg will be 60 kg

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )