Timmy drove 2/5 of a journey at an average speed of 20 mph.
2 answers:
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Clarification:
Let T signify the pendulum's period. The time's SI unit is seconds (s).
It is influenced by the length of the pendulum, l, and the gravitational acceleration, g.
The SI units for gravitational acceleration, g, and pendulum length, l, are m/s² and m, respectively.
Dividing m by m/s² produces s². Taking the square root of s² results in s, which is the SI unit for the pendulum's period.
Thus,
This concludes the solution we sought.
Refer to the diagram below.
This discussion operates under a basic analysis that overlooks air resistance and variations in the terrain the missile traverses.
Let V₀ be the launch velocity, at an angle θ to the horizontal.
The horizontal velocity component equals V₀ cosθ.
If the flight duration is
, then
where r represents the missile's range.
The time t at which the missile is at ground level is expressed by
where g signifies acceleration due to gravity.
t = 0 signifies the missile's launch. Thus
Consequently,
Typically, an angle of θ=45° is optimal for achieving maximum range, resulting in
This discussion applies more accurately to a scud missile than to a powered, guided missile.
Response:
Usually, θ=45°
This discussion operates under a basic analysis that overlooks air resistance and variations in the terrain the missile traverses.
Let V₀ be the launch velocity, at an angle θ to the horizontal.
The horizontal velocity component equals V₀ cosθ.
If the flight duration is
where r represents the missile's range.
The time t at which the missile is at ground level is expressed by
where g signifies acceleration due to gravity.
t = 0 signifies the missile's launch. Thus
Consequently,
Typically, an angle of θ=45° is optimal for achieving maximum range, resulting in
This discussion applies more accurately to a scud missile than to a powered, guided missile.
Response:
Usually, θ=45°
Answer:
17 m/s south
Explanation:
Mass of the dog = 10 kg
Mass of skateboard = 2 kg
v = Combined velocity = 2 m/s
Velocity of the dog = 1 m/s
Velocity of skateboard
In this scenario, linear momentum is conserved
The speed of the skateboard post-dog jump will be 17 m/s south, considering north as the positive direction