Answer:
Instantaneous speed
Explanation:
Usually the speed measuring guns are used to measure the speed at a certain instant, so the measured speed is instantaneous.
The average speed is determined by the expression final distance minus initial distance divided by time
The instantaneous speed is determined in the same way as the average, but with the exception that the travel displacements are shorter (very close one each other).
The thing that happened the year that Isaac Newton was bronbis that there was a war and he had to save his family
Answer:
current in the circuit is 1.428 A
Explanation:
Given data
voltage = 60 V
resistor = 21 Ω
time = 0
to find out
current in the circuit
solution
we have given that
voltage across the resistor = voltage across the inductor
that is = 60 /2 = 30 V
we know voltage across resistor = IR
so I × R = V/2
and current I = 30 /21
so current = 1.428 A
current in the circuit is 1.428 A
The vertical movement of the projectile is described by:
y = H - gt² / 2
When the cannonball is on the ground, y= 0 so:
0 = H - gt² /2
Solving for t:
The horizontally movement of the projectile is described by:
x = v₀t
Solving for v₀:
v₀ = x/t
v₀ = 175 m / 2.8 s
v₀ = 61.5 m/s
Answer:
1.16kg is the answer. Hope this helped
Explanation:
