00:01
Here in this given problem this is the frictionless icy hill, it is the top of the hill having a flat horizontal surface and then this is the ditch.
00:20
It should be covered without falling into it.
00:24
Its width is 40 meter.
00:28
The height of hill up to here if we assume to be given by h, that h, capital h, this is 70 meter and here this height small h, this is 50 meter.
00:54
So the block here, when the block will come here and it will go horizontally, suppose this point is b, that point is a, so it will be having horizontal velocity vb.
01:10
So it will follow a parabolic path and it should come up to this point.
01:16
So the vertical height dropped by the block over here means y, that will be given by h – h means 70 – 50 means that is 20 meter.
01:33
So vertical height 20 meter, horizontal distance that is 40 meter.
01:39
We have to find maximum speed of the block which should be given at this point va.
01:45
So for the projectile motion of the block from suppose this point is c, from b to c, the speed vb that will be given by speed, uniform speed is equal to distance upon time, distance 40 time taken, suppose this is t...