Atrolley of mass 1000 kg moving at 10 m/s collides and hooks onto another identical trolley at rest. what is the velocity of both the trolleys together?

v = 5 m/s

Explanation:

As we know that mass of the trolley which is moving is given as

m = 1000 kg

its speed is given by

now we know that when external force on a system is zero then its total moment will remains conserved

so here when two trolleys will collide then there is no external force on it

so here momentum of two trolleys will remain conserved

so we can say

here we will have

answer: the direction of the wind is expressed as the direction from which the wind is blowing. for example, easterly winds blow from east to west, while westerly winds blow from west to east.

explanation:

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