Advertisements
Advertisements
प्रश्न
What does a positive acceleration mean?
Advertisements
उत्तर
Positive acceleration corresponds to situation when velocity is continuously increasing with respect to the time.
APPEARS IN
संबंधित प्रश्न
An object of mass 16 kg is moving with an acceleration of 3 m/s2. Calculate the applied force. If the same force is applied to an object of mass 24 kg, how much will be the acceleration?
A racing car is moving with a velocity of 50 m/s. On
applying brakes, it is uniformly retarded and comes to rest in 20 seconds. Calculate its acceleration.
Diagram is given below shows velocity – time graph of car P and Q, starting from the same place and in the same direction. Calculate the Acceleration of car P.

A truck running at 90 kmh−1, is brought to rest over a distance of 25 m. Calculate the retardation and time for which brakes are applied.
A cyclist driving at 36 kmh−1 stops his motion in 2 s, by the application of brakes. Calculate
- retardation
- distance covered during the application of brakes.
Write the SI unit of acceleration and retardation.
Distinguish between uniformly and non-uniformly accelerated motions.
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.
From the given v-t graph it can be inferred that an object is

Correct your friend who says that acceleration gives the idea of how fast the position changes.
