Answer:
Explanation:
The train travels 5 miles in the east and then 2 miles in the west . Total path length is equal to 5 + 2 = 7 miles . But the displacement is (5 - 2 ) = 3 miles . So displacement ≠ path length
The jogger is running around a circular path . In moving one round on a circular path , path length is equal to the circumference of the circle but the displacement is zero because the starting point and finish point is same.
For the ball rolling down an inclined plane , path length is length of inclined path traveled and displacement is also the same . so in this case path length equals displacement.
For a ball thrown upwards and going downwards , total path length is equal to the total of path gone up and down or twice the height but the displacement is nil if the ball comes back again in the hand.
The gravitational pull is weaker.
Answer:
I would say the net force acting on the car is in the opposite direction of the car's motion is correct
Answer:
4 Ohms
Explanation:
The challenging part in this circuit is the bridged setup (diamond-shaped arrangement made of the 4 Ohm resistors). In general, this would first need to be transformed using the Wye-Delta transform to be solved, but in this case we can make a valid simplification: since the diamond arrangement is completely symmetrical, the voltage at the top and the bottom tip of the "diamond" will be identical and no current flows through the 4 Ohm bridge, hence, this resistor can be removed without changing the resulting resistance. After this, it is easy to see that the equivalent resistance of the modified "diamond" is just 4 Ohms.
The remaining top parallel branch of the circuit will be 8 Ohms, and the bottom parallel branch is nominally 8 Ohms. The resulting resistance therefore is 4 Ohms.
(The answer is not 2 Ohms!)