A body is moving unidirectionally under the influence of a source of constant power. Its displacement in time t is proportional to(i)t(1)/2(ii)t(iii)t(3)/2(iv)`t^2`

A body is initially at rest. It Undergoes one-dimensional motion with constant acceleration. The power delivered to it at time t is proportional to(i)t(1)/2 (ii)t(iii)t(2)/3(iv) t^2

The height and horizontal distance of a projectile are y= 8t-5t^2 m and x=6t m. its projection velocity is

If energy is E, power is P and time is 't', which one is correct-

Write the relation between power P, work done W and time t.

The equation sqrtx = t+9 gives the variation of displacement with time. Which of the following is correct?

The distance x of a particle moving in one dimension, under the action of constant force is related to time t by equation. t = sqrt x + 3 where x in metre and t in second. Find the displacement of the particle when its velicity is zero.

A body is released from the top of a tower of height h meters. It takes t seconds to reach the ground. Where is the body at time t/2 seconds?

One end of a string of length l is connected to a particle of mass m and the other to a small peg on a smooth horizontal table. If the particle moves in a circle with speed v the net force on the particle (directed towards the centre) is: (i)T,(II) T-(mv^2)//l, (iii) T+(MV^2)/l, (iv)0

A mass M is moving with a constant velocity parallel to x axis. Its angular momentum w.r.t. origin

Which of the following formulae are correct for describing the motion of the particle over the time-interval t_2 to t_1 ? x(t_2)=x(t_1)+v(t_1-t_1)_+(1//2)a(t_2-t_1)^2