Primary sources are most often produced around the time of the events you are studying.
hopwe this helps
List the known information:

Use the kinematic equation
.
Plug in the given values:

This would be 35.064 m/s downward, or 35 m/s downward with significant figures taken into account.
Answer: Therefore, Wave speed is 50 meter per second
Explanation:
Explanation:
The physics principle that goes to aerial spinning and twisting can be related to the conservation of angular momentum. ... Since momentum cannot be changed mid-air, he must decrease his rotational mass in order to increase his angular velocity. To increase his angular velocity the snowboarder tucks in his arms
We use the equation of motion for vertical component,

Here,
is displacement of bullet,
is vertical initial velocity of bullet which is equal to zero because bullet was fired horizontally, and t is time of flight.
Therefore,

Given, 
Substituting the values, we get time of flight
