Answer:
a = (v² − v₀²) / (2 (x − x₀))
Explanation:
v² = v₀² + 2a(x − x₀)
Subtract v₀² from both sides.
v² − v₀² = 2a(x − x₀)
Divide both sides by 2 (x − x₀).
(v² − v₀²) / (2 (x − x₀)) = a
Answer:
C. A normal distribution displays the highest data scores in the middle of the distribution.
Explanation:
The statement about a normal distribution that is not true is "a normal distribution displays the highest data scores in the middle of the distribution."
Given that,
Velocity , V = 20 m/s
Radius of curve, r = 50 m
Centripetal acceleration, ac = ?
since,
ac = V²/ r
ac = 20²/50
ac = 8 m/s²
The centripetal acceleration of car is 8 m/s².
Answer:
V = P = 0 m/s
Explanation:
When a pendulum bob is given an initial displacement or the initial velocity, it starts to execute periodic motion or simple harmonic motion. During this motion the kinetic and potential energy keeps interconverting. The kinetic energy becomes maximum at the lowest point, that is the mean point. Hence, the velocity is maximum at this point, as well. Similarly, at both extreme positions the potential energy becomes maximum due to maximum height, while the kinetic energy becomes zero at the highest point, that is extreme positions. At these, positions the velocity will be minimum and it will be zero due to zero kinetic energy. Hence, at both extreme positions the bob stops momentarily before, reversing the direction. Hence,
<u>V = P = 0 m/s</u>
making cars that get better gas mileage