
what Includes the speed of an object and the direction of its motion
Answer:
Hi, There!
Im 100% Sure your Answer is Velocity! Velocity is a measure of how fast something moves in a particular direction. To define it needs both magnitude and direction.
Hope this helps!!

Answer:
is the energy possessed by an object due to either its motion or its stored energy of position. The total amount of mechanical energy is merely the sum of these two forms of energy. And finally, an object with mechanical energy is able to do work on another object.
Explanation:
Answer:
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Explanation:
It is given that,
Mass of the plunger, 
Mass of the bullet,
Initially both plunger and the bullet are at rest, 
Final speed of the bullet, 
Let
is the final speed of the plunger. Using the conservation of momentum to find it. The equation is as follows :

Since, 




So, the recoil velocity of the plunger is 8.19 m/s. Hence, this is the required solution.