Advertisements
Advertisements
प्रश्न
Figure represents graphically the velocity of a car moving along a straight road over a period of 100 hours.
Calculate the acceleration along AB and the retardation along BC.
Advertisements
उत्तर
Acceleration along AB= (100 - 100)/(40 -20) = 0 ms-2
Retardation along CD= (100 - 50)/ (100 - 60) = 50/40 = 1.25 ms-2
APPEARS IN
संबंधित प्रश्न
Give one example of the following motion:
Uniform retardation
The velocity-time graph for a uniformly retarded body is a straight line inclined to the time axis with an obtuse angle. How is retardation calculated from the velocity-time graph?
A cyclist driving at 5 ms−1, picks a velocity of 10 ms−1, over a distance of 50 m. Calculate
- acceleration
- time in which the cyclist picks up above velocity.
State if the following situation is possible:
A body moving with constant acceleration but with Zero velocity.
Is it possible for an accelerating body to have constant speed?
A body has an acceleration of -3.5 ms-2. What is its retardation?
A car is moving with a speed of 50 km/h. One second later, its speed is 55 km/h. What is its acceleration?
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:
The Deceleration.
Acceleration is defined as the rate of change of ______.
A car is being driven at a speed of 20ms-1 when brakes are applied to bring it to rest in 5 s. The deceleration produced in this case will be ______.
