Answer:
I = 1.09 A
Explanation:
Here, 5 ohm and 12 ohm resistor are connected in parallel. Using the parallel combination of resistors as follows :
Now R and 2 ohm resistors are in series. Let the equivalent be . So,
Let I be the current. Using Ohm's law,
V = IR
or
I = 1.09 A
So, the correct option is (c).
Momentum
perfectly elastic collision and m₁ = m₂, then:
v₁ = +2, v₂ = -3.6 (different direction)
v₁’ = v₂ dan v₂’ = v₁, then:
v₁' = -3.6, v₂' = +2
The forece you have to overcome to start an object moving is called Inertia.