Answer:
The initial speed of bullet is "164 m/s".
Explanation:
The given values are:
mass of bullet,
or,
mass of wooden block,
speed,
Coefficient of kinetic friction,
As we know,
The Kinematic equation is:
⇒
then,
Initial velocity will be:
⇒
On substituting the given values, we get
⇒
As we know,
The conservation of momentum is:
⇒
or,
⇒ Initial speed,
On substituting the values, we get
⇒
⇒
⇒
Answer:
2.98 m/s^2
Explanation:
I have done this before and it was a question on my physics test
Scientists conduct experiments in order to prove a theory or a prediction they have or contradict it, so that then they can write down their results to study them.