A ball moves over a fixed track as shown in figure. From $A$ to $B$, the ball rolls without slipping. Surface $BC$ is frictionless. $K_A,K_B$ and $K_C$ are kinetic energies of the ball at $A$, $B$ and $C$ respectively. Then choose the correct alternative below-

$\left(a\right)h_A>h_C;K_B>K_C\left(b\right)h_A>h_C;K_C>K_A\left(c\right)h_A=h_C;K_B=K_C\left(d\right)h_A<h_C;K_B>K_C$

Q. $A$ ball moves over a fixed track as shown in the figure. From $A$ to $B$ the ball rolls without slipping. Surface BC is frictionless. $K_A,K_B$ and $K_c$ are kinetic energies of the ball at $A,B$ and $C$, respectively. Then

Q. The kinetic energies of a planet in an elliptical orbit about the sun at positions $A$, $B$ and $C$ are $K_A$, $K_B$ and $K_C$ respectively. $AC$ is the major axis and $SB$ is perpendicular to $AC$ at the position of the sun $S$ as shown in the figure with $SA<SB$. Then,

Q. The ball rolls down without slipping (which is at rest at $a$) along $ab$ having friction. It rolls to a maximum height $h_c$ where $bc$ has no friction. $K_a,K_{b}and{K}_c$ are kinetic energies at $a,b$ and $c$.
Which of the following is correct ?

Q. Figure shows two small blocks placed on a smooth horizontal surface. They start moving from the same line with force $2F$ and $F$ respectively acting on the blocks. Their momenta and kinetic energies at the instants of crossing the finishing line as shown in figure are $p_A,p_B$ and $K_A,K_B$. Then choose the correct option.