Advertisements
Advertisements
प्रश्न
Define speed.
Advertisements
उत्तर
Speed is defined as the ratio of total distance covered to the total time taken, it is a scalar quantity and always it is positive.
APPEARS IN
संबंधित प्रश्न
Which one of the following physical quantities cannot be represented by a scalar?
If a particle has negative velocity and negative acceleration, its speed ______
If the velocity is `vecv = 2hati + t^2hatj - 9veck`, then the magnitude of acceleration at t = 0.5 s is ______
If an object is dropped from the top of a building and it reaches the ground at t = 4 s, then the height of the building is ______
(ignoring air resistance) (g = 9.8 ms–2)
If one object is dropped vertically downward and another object is thrown horizontally from the same height, then the ratio of vertical distance covered by both objects at any instant t is ______
If a particle executes uniform circular motion in the xy plane in a clockwise direction, then the angular velocity is in ______
If an object is thrown vertically up with the initial speed u from the ground, then the time taken by the object to return back to the ground is ______
A water fountain on the ground sprinkles water all around it. If the speed of the water coming out of the fountain is v. Calculate the total area around the fountain that gets wet.
The bob of a simple pendulum has a mass of 2g and a charge of 5.0 µC. It is at rest in a uniform horizontal electric field of intensity 2000 V/m. At equilibrium, the angle that the pendulum makes with the vertical is ______.
(take g = 10 m/s2)
