The metallic elements which all react to water are found in the same group, the groups name is the Alkali metals, or also known as group one.
#1
mass of Sam = 75 kg
velocity of Sam = 18 m/s
now for momentum we can use
#2
Momentum of football = momentum of bullet
#3
As per Newton's law we know that net force is given as
now we have
also we know that
form above equation we have
#4
As per Newton's law we know that net force is given as
now we have
also we know that
form above equation we have
To solve this problem it is necessary to apply the equations related to the conservation of momentum.
This definition can be expressed as
Where
= Mass of each object
= Initial Velocity of each object
= Final velocity
Rearranging the equation to find the final velocity we have,
Our values are given as
Replacing we have,
Therefore the final velocity is 6.5m/s
Well the only relation they have is that they are both velocities.
The initial velocity of an object is the velocity it begins moving with. i. e if a ball is thrown its initial velocity is the velocity it has once it leaves the hand.
Terminal velocity is the maximum velocity an object can achieve when it is in free fall. i.e if a bowling ball is dropped from a plane, its velocity will increase until it reaches terminal velocity.