Recent content by Ajit Kumar

A. Sound is nothing more than a local disturbance whose propagation is facilitated by the collisions between particles B. The distances between molecules in solids are very small, i.e., solids are more dense - as compared to liquids and gases. Because they are so close, than can collide very...

So what I am missed in my logic?

Please explain this in more detail.

What if near the moon, if I find a beautiful girl? Who wouldn't like to stop?! ;)

But it must have some surface to exert pressure on. Like on Earth it exerts high pressure on ground. But in space, nothing is there. No air.

(a) Newtons III law : Every action has equal and opposite reaction By (a), if I apply a force of 10N on an object, it sholudnt move, as it has equal reaction, by friction of -10N so as to stop it. Isnt that logic correct?

means launching a missile in the forward direction, so as to reduce the velocity by applying a negative force? isn't it?

But how its velocity can be reduced?

(a) Newton's I law : a body will move without stopping unless any force acts. (b) There is no air in space, hence no aerial friction. From (a) and (b), how can a rocket stop in space? How it applies brakes?

Will a body projected with a speed less than the escape velocity may orbit the Earth in circular path?

escape velocity is the velocity by which any object overcomes the gravitational pull and flies away from planet. ve = √2gr

If an object is thrown upwards with escape velocity, will it orbit the earth?

thanks for your answers

Can a line be parallel to itself?

ok, thanks for your time.