Question

A train starts from rest from a station with acceleration 0.25 m/s² on a straight track and after attaining maximum speed it comes to rest on another station due to retardation of 0.5 m/s². If total time spent is half an hour, then distance between two stations is (Neglect length of train) :- (1) 270 km (2) 540 km (3) 180 km (4) 360 km​

Answer 1

Edge of the cube

The volume of the cube corresponds to the space held within it. The cube has all faces in square structure, all the faces have equal dimensions. The edges opposite to each other are parallel.

We know that, the volume of cube is equal to the product of three times of the edges of the cube.

In mathematical term the volume of cube will be,

\implies Volume_{(cube)} = a^3⟹Volume

(cube)

=a

3

Here a is the edge of cube. And here in this question we have, Volume = 1331cm³. So by using the volume of cube formula we can get our edge value.

Let us assume that, the edges of the cube be a \; cm.acm.

By using the required