Mechanics | Relativity Answers

Wind is blowing from south at 5m/s to a cyclist it appears to be blowing from east at 5m/s the velocity of cyclist

Consider a cylindrical pipe with uniform cross area. If water is flowing in the downward direction then .
By equation of continuity, AV=av where A and a represent cross section areas and V and v represent velocity at A and a respectively.
Since A=a ,Equation of continuity will be
V=v.
But as the water is coming in the downward direction velocity at two different points can't be equal.
Then how is this possible???

How energy is transferred in transverse wave?

If a point on a bike is momentarily in contact with the ground at a constant speed, what would the direction of acceleration for this point be?

an irregular piece of metal weighs 10g in air 8g in water and 8.5g in oil what are the volumes of the metal and the density of oil

If kinetic energy of a body is increased by 300 percent , then the percentage change in momentum will be how much?

A large open tank has two holes in its wall. One is a square of side a at a depth x from the top and the other is a circular hole of radius r at depth 4x fron the top. When the tank is completely filled with water,the quantities of water flowing out per second from both holes are the same. Then r is equal to

Two bodies are moving with accleration g and velocities of 3 &4m/s in opposite directions.What will be the distance between the two bodies when their velocity vectors become perpendicular to each other?

A harmonic wave is traveling along a rope. The oscillator that generates the wave completes 40.0 vibrations in 36.0 s. A given maximum of the wave travels 395 cm along the rope in a time period of 10.0 s. What is the wavelength?

A comet orbits the sun in a highly elliptical orbit.does the comet have a constant
1)linear speed
2)angular speed
3)angular momentum
4)kinetic energy throughout its orbit .Justify