if a particle is at rest then x - t graph can be only
a] parallel to the position
b] parallel to time axis
c] inclined with acute angle
d] inclined with obtuse angle
Answers
Answer:
a straight line along X axis.
(b)
Explanation:
assuming that at t=0 X=0 where X is displacement. since value of X doesn't change it will stay zero
hence (b)
"B- parallel to time axis"
Explanation:
If a block is set on a smooth horizontal surface, hence the surface offers typical response alone which adjusts the heaviness of the square. In this way, the diagram will be a straight line corresponding to time pivot.
Thus, choice (a) is wrong. Since, speed increase of the molecule is constant, hence, its speed increments with time. At time one, it will be equivalent to v = at. It implies v-t bend will be a straight line going through beginning.
KE of the square will be equivalent to 1/2 m² = 1/2 mat. So, diagram among KE and I will be a parabola with expanding slant. Diagram yielded (c) is additionally a parabola however its slant is diminishing. Hence, choice (b) is right. P = fv = Fat i.e., the P-t chart will be a straight line.
Since, the square continues on a smooth horizontal plane, along these lines, entire of the work done by the power F is utilized to build KE of the square. Consequently, at uprooting S. KE = Fs. Along the lines, chart among KE and s will be a straight line going through beginning.