Advertisements
Advertisements
प्रश्न
Length of scale : metre :: Speed of aeroplane : ______.
Advertisements
उत्तर
Length of scale: metre:: Speed of aeroplane: knot.
APPEARS IN
संबंधित प्रश्न
The distance between two stations is 240 km. A train takes 4 hours to cover this distance. Calculate the speed of the train.
The odometer of a car reads 57321.0 km when the clock shows the time 08:30 AM. What is the distance moved by the car, if at 08:50 AM, the odometer reading has changed to 57336.0 km? Calculate the speed of the car in km/min during this time. Express the speed in km/h also.
Suppose the two photographs, shown in Figure 1 and Figure 2, had been taken at an interval of 10 seconds. If a distance of 100 metres is shown by 1 cm in these photographs, calculate the speed of the fastest car.

Figure 1 Vehicles moving in the same direction on a road

Figure 2 Position of vehicles shown in Figure 1 after some time
When is instantaneous speed the same as the average speed?
Do speed and average speed of a body have the same meaning?
Can the speed of a body be negative?
The correct relation among the following is
Every object moves with a constant speed.
The SI unit of speed is a kilometer.
A spaceship travels 36,000 km in one hour. Express its speed in km/s.
