Advertisements
Advertisements
प्रश्न
A vehicle covers a distance of 400km in 5 hours. Calculate its speed.
Advertisements
उत्तर
Distance covered by the vehicle = 400 km
Time taken = 5 hour
Average speed = `"distance covered"/"time taken" = (400 "km")/(5"hours")`
= 80 km/hr.
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.
Does uniform speed mean constant speed?
Is the average speed during different time intervals for a uniform motion the same or different?
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.
Length of scale : metre :: Speed of aeroplane : ______.
Compare speed and velocity
The cheetah the fastest animal among terrestrial animals run with an average speed of ______.
The SI unit of speed is a kilometer.
______ measures the instantaneous speed of the automobile.
Distinguish between speed and velocity.
