Recent content by Einstein60

It's not a a medical problem. It happens to everyone.

This is also part. But I meant when your hands are down relaxed without any force lifting it or moving it

You move forward with the car but your upper body goes back and lie on the seat. It's like Newton's first law, when the car is at rest, you continue to be at rest with the car. But when the car accelerates forward, you still want to be at rest so your upper body moves a little backwards.

I just wanted to know.

Okay.

When I stand and relax my hand without lifting it. It's very relaxed. Within few minutes, I feel my hands become heavy. Why is this so.

No

Can you please explain further

Today, I filled a bottle with water and I created a small hole beneath the bottle on the side. I realized that if I open the cock of the bottle, the water flowed out of the hole but if I close it, the water stopped flowing. WHY?

But with a bicycle, it is different

Please I don't Understand

Assuming I'm in a train moving at a very high speed. According to Newton if I jump up, I must land at the same place. But what if I had the aptitude/ability to jump very very high, will I be moving in the air and land at the same place.

Thank you very much. I now understand.

I remember one day when I entered a bus. I was standing taking money from my Pocket I didn't know the driver was about to take off. Immediately the driver drove the car, an unknown force pushed me back on the seat.

It says every body continues to stay at rest or if it is moving continues to move in a straight line unless an external force acts on it to change its direction or state of motion.