At what point in the trajectory of an oblique projectile is the speed minimum?

A block is projected up a frictionless inclined plane with initial speed $u$. If the distance traveled up the plane is $x$ when the angle of inclination is $heta$, what is the relationship between $x$, $u$, $g$, and $heta$?

A projectile is launched at an angle $heta$ with initial speed $u$. At its highest point, it explodes into two identical fragments. One fragment moves vertically upwards with speed $v$ immediately after the explosion. What is the speed of the other fragment immediately after the explosion?

A boat takes two hours to travel 8 km and back in still water. If the velocity of water 4 ${\rm{km}}{{\rm{h}}^{ - 1}}$, the time taken for going ups tream 8km and coming back is

A ball is projected with kinetic energy E. at an angle of ${45^0}$ to the horizontal. At the highest point during its flight, its kinetic energy will be

A body of mass m thrown horizontally with velocity v, from the top of tower of height h touches the level ground at distance of 250 m from the foot of the tower. A body of mass 2m thrown horizontally with velocity $\frac{v}{2}$, from the top of tower of height 4h will touch the level ground at a distance x from the foot of tower. The value of x is

The acceleration experienced by a moving boat after is engine is cut-off, is given by $a = - k{v^3},$, where k is a constant. If ${v_0}$ is the magnitude of velocity at cut-off, then the magnitude of the velocity at time t after the cut off is

A projectile is launched with a speed of $20 \, m s^{-1}$ at an angle of $30^\circ$ with the vertical. What is its horizontal velocity at the highest point of its trajectory?

For an object thrown at ${45^0}$ to horizontal, the maximum height (H) and horizontal range (R ) are related as

A projectile is launched with a velocity 'u' at an angle $heta$ with the horizontal. The magnitude of its velocity at the highest point is:

A monkey can jump a maximum horizontal distance of 20 m. Then the velocity of the monkey is