Advertisements
Advertisements
प्रश्न
Which of the two can be zero under certain conditions : average speed of a moving body or average velocity of a moving body ?
Advertisements
उत्तर
Average velocity of a moving body can be zero. This is because the net displacement for a given time interval can be Zero .
APPEARS IN
संबंधित प्रश्न
Fill in the following blank with suitable word :
Velocity is the rate of change of……………………… It is measured in.............. .
What conclusion can you draw about the velocity of a body from the displacement-time graph shown below :
A bus running at a speed of 18 km/h is stopped in 2.5 seconds by applying brakes. Calculate the retardation produced.
Explain the meaning of the following equation of motion :v = u + at, where symbols have their usual meanings.
Derive the formula s= `ut+1/2at^2` , where the symbols have usual meanings.
A freely falling object travels 4.9 m in 1st second, 14.7 m in 2 nd second, 24.5 m in 3rd second, and so on. This data shows that the motion of a freely falling object is a case of :
Which of the following could not be a unit of acceleration?
The slope of a speed-time graph gives:
If a stone and a pencil are dropped simultaneously in vacuum from the top of a tower, then which of the two will reach the ground first? Give reason.
An object starting from rest travels 20 m in the first 2 s and 160 m in the next 4 s. What will be the velocity after 7 s from the start?
