Fig. 2 (NCT).9 show the ` x-t` plot of a particle in one dimensional motion. Three different equal intervals of time are shown. In which interval the average speed is greatest and in which it is the least ? Give th sign of average speed for each interval.
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Fig. 2 (NCT). 10 . Give a speed-tiem graph of a particle in one dimenstional motion. Three different equal intervals of time are shwon. In which interval is the average acceleration graeatest in magnitude ? In which interval is the average speed greatest ? Choosing the positive direction as the constant direction of motion, give the signs of u and a in the three intervals. What are the acclerations at teh points A, B , C and D ? .

Find average speed in time interval t= 2 to t=10s

Figure gives the x-t plot of a particle is one dimensional motion. Give the signs of position, velocity and acceleration of the particle at t = 0.3s

Fig 2 (NCT).8 gives the x-t plot of a particle executing one dimensional simle harmonic motion. Give the signs of position, velocity and acceleration variables of the particles at t= 0.3 s , 1.2 s, - 1. 2 s ,

Figure shows the x-t plot of a particle moving along a straight line. Let v_1 and v_2 , be average speeds in time intervals 1 and 2 respectively. Then

s-t graph of a particle in motion is shown in Fig. Calculate Average speed

Figure shows the velocity of a particle moving on x-axis. Which of the following statement is correct for the interval shown in graph?

The velocity-time plot is shown in figure. Find the average speed in time interval t = 0 to t = 40 s during the period.

Assertion: The average velocity of a particle is zero in a time interval. It is possible that the instantaneous acceleration is never zero in the interval. Reason: The magnitude of average velocity in an interval is equal to its average speed in that interval.

If the object is moving with uniform velocity in a given interval of time, then the average speed and instantaneous velocity are equal, why?