Motion in A Str...

Two cars A and B are moving with same speed of 45 km/h along same direction. If a third car C coming from the opposite direction with a speed of 36 km/h meets two cars in an interval of 5 min, the distance of seperation of two A and B should be :

A man weighing 80 kg is standing at the centre of a flat boat and he is 20m from the shore. He walks 6m on the boat towards the the shore and then halts. The boat weight 200 kg. How far is he from the shore at the end of this time?

A car, starting from position of rest, moves with constant acceleration $$8\ m/s^{2}$$. Then it moves with constant deceleration $$y$$ and becomes stationary. If it aquires maximum velocity is $$10\ m/s$$ then total time takes by it is $$20\ sec$$, then $$y=........$$ 

A man runs at a speed of  $$4\mathrm { ms } ^ { - 1 }$$  to overtake a standing bus. When he is  $$6\mathrm { m }$$  behind the door  $$\mathrm { t } = 0 ,$$  the bus starts to move forward and continues with a constant acceleration of  $$1.2\mathrm { ms } ^ { - 2 } .$$  If the man reaches the door in time  $$t$$ , then the can be obtained by the equation

A rickshaw covers a journey of 200 m in 17 s. It starts from rest with constant acceleration of $$2 m/s^2$$, then moves some distance with constant speed and finally decelerates at $$5 m/s^2$$ until it stops at the end of journey. Its maximum velocity is

For the given graph, correct relation is:-

A ball rolls off the top of stairway with a horizontal velocity of magnitude  $$1.8{ m } /  { s }.$$  The states are  $$0.20 { m }$$  high and  $$0.2 { m }$$  wide. Which step will the ball hit first ?

A freely falling body crosses points A and B with velocities V and 2V respectively. The velocity of that body at C such that AB = BC will be

A body dropped from the top of a tower covers 7/16 of the total height in the last second of its fall. The time of fall is

Which of the following equation represents the motion of a body moving with constant finite acceleration? In these equation, y denotes the displacement in time t and p.q. and r are arbitary constant ;