Answer:
Their working speed = 5 km/ hour and 3 km/ hour
Explanation:
Let their speeds be x and y
2 ( x+y) =16
x+y = 8 .....................(A)
Assuming x is > y
8x- 8y = 16
x- y = 2 ................(B)
(A) + (B) 2x = 10
x = 5 km/ hour y = 3 km/ hour
Effort force
Explanation:
When the potion of fulcrum and weight is changed, the mechanical advantage changes.Increasing the distance between the fulcrum and the effort, there is a proportion increase in effort required to lift a load.The ration of the distance from the fulcrum to the position of input and output application gives the mechanical advantage in levers when losses due to friction are not considered.
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Mechanical advantage in Levers : brainly.com/question/11600677
Keywords : Levers, fulcrum, position
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Answer:
I = 0.2 A
Explanation:
The current flowing across each resistor in a series arrangement is the same throughout the circuit. So in order to calculate the current, we must first find the equivalent resistance of all three resistors. The equivalent resistance of the resistors connected in series is given as:
Now we use Ohm's law for the current:
<u>I = 0.2 A</u>