Answer:
a) 6 m/s
b) 14 m/s
Explanation:
Acceleration is change in velocity over change in time.
a) a = Δv / Δt
2 m/s² = (v − 4 m/s) / 1 s
v = 6 m/s
b) a = Δv / Δt
2 m/s² = (v − 4 m/s) / 5 s
v = 14 m/s
Current is split among different branches of wires, or voltage is equal throughout?
The first two choices are both false, but the <em>second one</em> is the falser one.
All electricity sources do <em>not</em> have the same voltage. The outlet in your bedroom wall supplies 120 volts, but the USB port on your laptop only supplies 5 volts, and the battery in your cellphone only supplies 3.7 volts.
The maximum height of the ball during this interval is 4.9 m (Option A)
<h3>How to determine the time to reach maximum height</h3>
The time taken to reach the maximum height can be obtained as follow:
- Time for the entire trip (T) = 2 s
- Time to reach maximum height (t) = ?
T = 2t
2 = 2t
Divide both side by 2
t = 2 / 2
t = 1 s
<h3>How to determine the maximum height reached by the ball</h3>
The maximum height reached by the ball can be obtained as follow:
- Acceleration due to gravity (g) = 9.8 m/s²
- Time to reach maximum height (t) =?
- Maximum height (h) =?
h = ½gt²
h = ½ × 9.8 × 1²
h = ½ × 9.8 × 1
h = 4.9 m
Thus, the maximum height reached by the ball is 4.9 m (Option A)
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The definition of a Newton (unit) is an expression of a quantity as a result of a 
object acceleration.
<h3>What is the SI newton unit?</h3>
The Standard International (SI) unit of force is the newton. The letter N is frequently used to shorten the phrase "newton" in physics and engineering documents. In the absence of any other forces, one newton is the force necessary to accelerate a mass of one kilogram at a pace of one meter per second squared.
<h3>What are the equivalents of a newton in terms of mass and acceleration?</h3>
One Newton is the amount of force required to accelerate one kilogram of mass one squared meter per second.
<h3>Is the newton a measure of force?</h3>
The newton, abbreviated N, is the SI unit of force. Base units that are pertinent to force are: The symbol for the length unit of a metre is m. the kilogram (kg), a unit of mass.
learn more about newton here
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