The distance-time curve for a hypothetical journey has the shape of an equilateral triangle with one side along the time axis. Discuss the velocity and acceleration necessary to bring about such a journey. Comment on whether or not this is a realistic journey. Will it be a real curve if it is a displacement-time curve.

The velocity-time graph for part of a train journey is a horizontal straight line. What does this tell you about (a) the train's velocity, and (b) about its acceleration ?

Mention one use of velocity-time curve of an accelerating object.

A thin uniform plate shaped as an equilateral triangle with a height 'h' performs small oscillations about the horizontal axis coinciding with one of its sides. The time period of oscillation is…..

Displacement-time curve of a particle moving along a straight line is shown. Tangents at A and B makes angle 45^(@) and 135^(@) with positive x -axis respectively. The average acceleration of the particle during t=1,t=2 seconds is

Fig. shows the graph of velocity versus time for a partice going along the x-axis. Find (a) acceleration, (b) the distance traveled in 0 to 10 s and (c) the displacement in 0 to 10 s.

Three particles A,B and C and situated at the vertices of an equilateral triangle ABC of side of length l at time t=0 ,Each of the particles move with constant speed u . A always has its velocity along AB, B along BC and C along CA .

Three identical uniform thin metal rods form the three sides of an equilateral triangle. If the moment of inertia of the system of these three rods about an axis passing through the centroid of the triangle and perpendicular to the plane of the triangle is 'n' times the moment of inertia of one rod separately about an axis passing through the centre of the rod and perpendicular to its length, the value of 'n' is

Raju has to cover a distance of 240 km in 4 hours. If he covers one-third of the journey in 2/7 th time, what is his speed at the beginning of the journey?

Graphs are very useful to represent a physical situation. Various quantities can be easily represented on graphs and other quantites can be determined from the graph. For example the slope of velocity-time graph represents instantaneous acceleration. For a motion with constant acceleration slope of velocity-time graph is constant. If acceleration is changing with time, slope with change and thus velocity-time graph will be a non-linear curve. Further the area of velocity-time graph gives displacement. For the given velocity-time graph the possibly correct acceleration-time relationship is

Graphs are very useful to represent a physical situation. Various quantities can be easily represented on graphs and other quantites can be determined from the graph. For example the slope of velocity-time graph represents instantaneous acceleration. For a motion with constant acceleration slope of velocity-time graph is constant. If acceleration is changing with time, slope with change and thus velocity-time graph will be a non-linear curve. Further the area of velocity-time graph gives displacement. The velocity-time graph for two objects P and Q are shown. The ratio of their respective acceleration is