Advertisements
Advertisements
प्रश्न
State how the velocity-time graph can be used to find
The acceleration of a body
Advertisements
उत्तर
The slope of the velocity-time graph gives the value of acceleration.
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 car is travelling along the road at 8 ms-1. It accelerates at 1 ms-2 for a distance of 18 m. How fast is it then travelling ?
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.
A bicycle initially moving with a velocity 5.0 m s-1 accelerates for 5 s at a rate of 2 m s-2. What will be its final velocity?
Write three equations of uniformly accelerated motion relating the initial velocity (u), final velocity (v), time (t), acceleration (a) and displacement (S).
Derive the following equations for uniformly accelerated motion:
(i) v = u + at
(ii) `"S = ut" + 1/2 "at"^2`
(iii) v2 = u2 + 2aS
where the symbols have their usual meanings.
What do you understand by the term acceleration?
When is the positive acceleration?
Draw a velocity versus time graph of a stone thrown vertically upwards and then coming downwards after attaining the maximum height.
