Advertisements
Advertisements
प्रश्न
A car accelerates to a velocity of 30 m/s in 10 s and then decelerates for 20 s so that it stops. Draw a velocity-time graph to represent the motion and find:
Distance travelled
Advertisements
उत्तर
Distance travelled= area under speed time graph = `1/2`x30x30 =450 m.
APPEARS IN
संबंधित प्रश्न
A body falls freely from a certain height. Show graphically the relation between the distance fallen and square of time. How will you determine g from this graph?
If a body is moving with a constant velocity its acceleration is ______.
Explain the following concept in your own words with everyday examples:
Acceleration
When is the acceleration due to gravity negative?
From the diagram given below, calculate acceleration.
A racing car, initially at rest, picks up a velocity of 180 kmh−1 in 4.5 s. Calculate
- acceleration
- distance covered by the car.
The acceleration of a body is 8.5 ms-2. What does this statement mean?
A body has an acceleration of -3.5 ms-2. What is its retardation?
Sketch the shape of the velocity-time graph for a body moving with:
Uniform acceleration.
The slope of a velocity-time graph gives ______.
