If the amount of electrical energy is 50 Joules before the conversions, then it would be 50 Joules after the conversion.
According to law of conservation of energy, we cannot create or destroy energy so it remains constant
Hope this helps!
Answer:
48.54 m
Explanation:
Mass of moving aircraft = 1000 kg
Mass of stationary aircraft = 1500 kg
Velocity of moving aircraft = 25 m/s
Velocity by which they both move together = 10 m/s
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration
Both planes skid a distance of 48.54 m
Data:
a) v = 84 m/s
r = 225 m
Ac =?
b) Ac = 9.8 m/s^2
v = ?
Formula: Ac = v^2 / r
Solution
a) Ac = (84 m/s)^2 / (225 m) = 31.36 m/s^2
To measure it in terms of g, divide by g = 9.8 m/s^2
=> Ac = 31.36 m/s^2 / [ 9.8 m/s^2 / g] = 3.2 g
Answer: Ac = 3.2 g
b) Ac = 9.8 m/s^2
v^2 = Ac * r = 9.8 m/s^2 * 225 m = 2,205 m^2 / s^2
=. v = 46.96 m/s ≈ 47 m/s
Answer: 47 m/s
A " 4 x 100 m " race means that four runners each run 100 meters, for
a total of 400 meters ... very close to a quarter mile.
On a 200-meter track, each runner does halfway around the track, and
the whole team of four runners does twice around the track.
This team did the whole thing in 50.2 seconds. The average time for each runner
was 50.2/4 = 12.55 seconds.
The average speed of each runner was (400 meters)/(50.2 seconds) = <u>7.968 m/s .</u>
Velocity is a speed and a direction. We have the speed, leaving only the puzzle of
what to do about the 'average' direction.
Here's a sneaky but easy way to dispense with the whole issue:
Define the average velocity (vector) as (total displacement vector)/(total time).
Since the fourth runner finished in exactly the same spot as the first runner
began, the total displacement is <u>zero</u>, and therefore so is the average velocity.