An object of mass m moves with a uniform speed v round a ...
An object of mass m moves with a uniform speed v round a circular path of radius r. If its angular speed is \(\omega\), the magnitude of the centripetal force acting on it is
\(m \omega^2 r\)
\(\frac{mv^2}{r}\)
\(m \omega r\)
\(\frac{mv^2}{r^2}\)
Correct answer is A
No explanation has been provided for this answer.
In a closed organ pipe producing a musical note, an antinode will always be produced at ...
A piece of wood is floating on water. The forces acting on the wood are ...
A cannon is fired from town X, after how long is the sound heard at a town Y 4.95 km away? [veloc...
The force between molecules of the same substance is termed ...
The main function of the mouth of a telephone is to convert sound energy into ...
Which of the following statements is correct about the angle of dip at various points on Earth? ...