Un mobil pleaca din originea sistemului de axe cu viteza ininitaiala 5m/s. Acesta se misca uniform accelerat cu acceleratia 3m/s2. Aflati viteza si pozitia mobilului dupa un interval de timp 3s

The final speed is 14 m/s and its position is 28.5 m.

Explanation:

The question says "A mobile starts from the origin of the axle system with an initial speed of 5m / s. It moves uniformly accelerated with acceleration 3m / s2. Find out the speed and position of the mobile after a time interval of 3s "

Given that,

Initial speed, u = 5 m/s

Acceleration, a = 3 m/s²

We need to find the final speed and position of the mobile after a time interval of 3s.

For final speed (v)

It can be calculated using first equation of motion as:

v=u+at

v=5+3(3)

v = 14 m/s

Let it is at x distance. Using second equation of motion to find it as follows :

Hence, the final speed is 14 m/s and its position is 28.5 m.

32: from largest to smallest, this hierarchy includes eons, eras, periods, epochs, and ages.

33: answer is c

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