Advertisements
Advertisements
प्रश्न
Can the speed of a body be negative?
Advertisements
उत्तर
No the speed of a body cannot be negative.
APPEARS IN
संबंधित प्रश्न
Salma takes 15 minutes from her house to reach her school on a bicycle. If the bicycle has a speed of 2 m/s, calculate the distance between her house and the school.
______ is a scalar quantity.
Define Speed.
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.
A body covers half the distance with the speed A and the other half with speed B. What will be the average speed for the whole journey?
A vehicle covers a distance of 400km in 5 hours. Calculate its speed.
The speed of a train is expressed in m/h.
The SI unit of speed is a kilometer.
