मराठी

From the velocity – time graph given below, calculate: Acceleration in the region AB.

Advertisements
Advertisements

प्रश्न

From the velocity – time graph given below, calculate acceleration in the region AB.

आलेख
Advertisements

उत्तर

Acceleration in the region AB = Slope of v.t. graph from A to B

= `"BF"/"AF"=14/12` = 1.16 ms−2

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Motion in One Dimension - Unit II Practice Problems 3

APPEARS IN

संबंधित प्रश्‍न

Show by using the graphical method that: `s=ut+1/2at^2` where the symbols have their usual meanings.


Three speed-time graphs are given below :

 Which graph represents the case of:
(i) a cricket ball thrown vertically upwards and returning to the hands of the thrower ?
(ii) a trolley decelerating to a constant speed and then accelerating uniformly ?


Study the speed-time graph of a car given alongside and answer the following questions:

(i) What type of motion is represented by OA ?
(ii) What type of motion is represented by AB ?
(iii) What type of motion is represented by BC ?
(iv) What is the acceleration of car from O to A ?
(v)What is the acceleration of car from A to B ?
(vi) What is the retardation of car from B to C ?


What does the area of an acceleration – time graph represent?


A train starting from rest picks up a speed of 20 ms−1 in 200 s. It continues to move at the same rate for the next 500 s and is then brought to rest in another 100 s.

  1. Plot a speed-time graph.
  2. From graph calculate
    (a) uniform rate of acceleration
    (b) uniform rate of retardation
    (c) total distance covered before stopping
    (d) average speed.

The area of the right triangle under a speed-time graph is 500 m, in a time interval of 20 s. What is the speed of the body? Is the motion uniform or non-uniform?


Draw the following graph:
Distance versus time for a body at rest.


What can you say about the motion of a body if:
Its time-displacement graph is a straight line.

Draw velocity-time graph to show:
Zero acceleration
Write a sentence to explain the shape of graph.


State whether true or false. If false, correct the statement.

The velocity – time graph of a particle falling freely under gravity would be a straight line parallel to the x axis.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×