Along which of the two trajectories, the horizontal line `ac'b` or the broken line consisting of two straight segments `(ac and cb)`, will the work performed by a force in displacing an object be greater if the friction is the same for all three straight segments?

Figure shows the top view of two horizontal forces pulling a box along the floor. The work done by each force to displace the box 70 cm along the broken line is :

P is the centre of mass of four point masses A,B, C and D which are lying in the same length but not along the same straight line then.

Two particles are moving along a straight line as shown. The velocity of approach between A and B is

A straight line segment of length/moves with its ends on two mutually perpendicular lines. Find the locus of the point which divides the line segment in the ratio 1:2

Two long straight wires are connected by a circular section which has a radius R . All the three segments lie in the same plane and carry a current I . The magnetic induction at the centre O of the circular segments is

The amount of heat supplied to an ideal gas is laid off on the horizontal axis and the amount of work performed by the g-as is laid off on the vertical axis. One of the straight lines in the ligure is an isotherm and the other two are isobars of two gases. The initial states of hoth gases (pressure, temperature, volume) are the same, and the scales on the two axes coincide. Which straight line corresponds to which process? How many degrees of freedom does each gas have? (Vibrational degrees of freedom are not to be taken into account.) The graphs of what processes coincide with the coordinate axes?

Which of the following expressions corresponds to simple harmonic motion along a straight line , where x is the displacement and a, b, c are positive constant ?

A particle of mass 2kg travels along a straight line with velocity v=asqrtx , where a is a constant. The work done by net force during the displacement of particle from x=0 to x=4m is