Q)
(chatquestion)...What is the average speed of the particle over the Intervals in (a) and (b) 2
The velocity-time graph of a particle In one-dimensional motion is sho
Fig. 3.29:
3.28
Consider the pote
where coordina
Suppose now that the
decrease and approach
o the line PQ as dg-0, u0. You cn
potnt P as shown in Pg 3.30 Tha m
P. denoted by m
t1
t2
Fig. 3.29
The limit of the ratio by/x as Ax au
and is written as dy/dx It represe
point (x, y).
Since y= fd and y+Ay SL
Which of the following formulae are correct for describing the motion of the particle
over the time-interval t, tot:
(a) xft,) = xft,) + v (t,) (4,-4,) fA a (t,-t,P
(b) vit,) = vft,) + a (t,-t,)
(c) v
= (xit) - xt,))/(t,- t,)
3 (ult,) – v(t,))/(L, - t,)
dy
erge
(d) a
(e) xit,)= xft,) +v
W xit,)- xft,) = area under the v-t curve bounded by the t-axis and the dotted line
shown.
dx
dx
(t-t)+(2) a
(t,-t,P
Guerage
average
Given below are some elemes
represent arbitrary function:
of y Derivatives of some C
...
