Explanation:
The moment of A about B is given by the formula
where M is the moment, F is the force acting perpandicular to the axis of rotation about B by A, and d is the horizontal distance of A from B along the axis of rotation.
Now
(a) At X,
(b) At 0.5m from X,
(c) At Y,
where negative sign indicates clockwise rotation of the child about Z.
(d) At Z,
Answer:
"2Ω" is the net resistance in the circuit.
Explanation:
The given resistors are:
R1 = 3Ω
R2 = 6Ω
The net resistance will be:
⇒
On substituting the values, we get
⇒
On taking L.C.M, we get
⇒
⇒
⇒
On applying cross-multiplication, we get
⇒
Answer:
Point a
Explanation:
The potential energy of an object is given by :
P = mgh
m is mass, g is acceleration due to gravity, h is height above ground level.
Potential energy is directly proportional to the position of an object.
In the attached figure, the maximum height is shown at point (a). It means it will have maximum potential energy at a as compared to b,c and d.
