The ratio of time of flight for inelastic collision to elastic collision is 1:2
The given parameters;
- <em>mass of the bullet, = m₁</em>
- <em>mass of the block, = m₂</em>
- <em>initial velocity of the bullet, = u₁</em>
- <em>initial velocity of the block, = u₂</em>
Considering inelastic collision, the final velocity of the system is calculated as;
The time of motion of the system form top of the table is calculated as;
Considering elastic collision, the final velocity of the system is calculated as;
Apply one-directional velocity
Substitute the value of 
into the above equation;
where;
is the final velocity of the block after collision
<em>Since the</em><em> bullet bounces off</em><em>, we assume that </em><em>only the block fell </em><em>to the ground from the table.</em>
The time of motion of the block is calculated as follows;
The ratio of time of flight for inelastic collision to elastic collision is calculated as follows;
Learn more about elastic and inelastic collision here: brainly.com/question/7694106
The direction of torque τ this method is mathematically given as
D=X
Option A is correct.
<h3>What is the
direction of
torque?</h3>
Generally, the equation for torque is mathematically given as
τ = r X F
Hence to decipher the torque direction with respect to the center of mass of the body due to force F acting on the body at a location indicated by the vector r
- We utilize our right hand.
- Place our right-hand fingers along the path of r
- Place our right-hand palm on F
- Then slowly we sweep r into F.
- The path or direction of the thumb will provide the direction of the torque.
In conclusion, the direction of this method is
D=X Option A.
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The 2 roles of forensic engineers is the detective role and then the engineering role.
Answer:
The change of the momentum of the ball is 
Explanation:
We should find 
(1)with 
the initial momentum and 
the final momentum. Linear momentum is defined as 
, using that on (1):
(2)
It's important to note that momentum and velocity are vectors and direction matters, so if +x direction is the direction towards the wall and the -x direction away the wall 
and 
so (2) becomes:
momentum= mass × velocity = 0.141kg×1.33m/s= 0.18753kg m/s = 0.188kg m/s (3s.f.)
