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.
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
A girl had designed a clap switch for a science exhibition that enabled her to switch on or off an alarm just with clapping of hands. While testing her device in a hall, she noticed that once the alarm has sounded it followed with another one due to echo of the clap, that is, the sound reflected by the walls. She recorded the two soundings of alarm with her tape recorder and found out that time difference in between them is 0.1 s. If the distance of the walls be 15 m, calculate the speed of sound.
Vehicles moving with varying speeds are said to be in uniform motion.
Speed is a ______ quantity whereas velocity is a ______ quantity.
The time period of a given pendulum is constant.
A ______ is the fastest land animal.
Speed is always positive or zero but never be ______.
A car increases its speed from 20 km/h to 50km/h in 10 seconds. Its acceleration is ______.
Which of the quantities have the same SI unit?
