At which point of the trajectory is the speed of projectile motion minimum?

At what point of the projectile path the speed become maximum and minimum?

Show that the trajectory of projectile is parabolic.

What is the velocity of a projectile at the highest point?

Which point defect lowers the density of a crystal?

Establish the equation of trajectory of an angular projectile.

At which point of motion the acceleration of a body executing SHM is zero ?

A trolley of mass 200 kg moves with a uniform speed of 36 km/ h on a frictionless track. A child of mass 20 kg runs on the trolley from one end to the other (10 m away) with a speed of 4 m s^-1 relative to the trolley in a direction opposite to the its motion, and jumps out of the trolley. What is the final speed of the trolley? How much has the trolley moved from the time the child begins to run?

Find the ratio in which the point of intersection of the x-axis and the line segment which joins the points (3,5) and (2,-7) internaly divides the line segment.Also find the coordinates of the point.

Work Problem related to the form A/(ax+by)+B/(cx+dy)=k A motorboat takes 6 hours to cover 100 km downstream and 30 km back. If the motorboat goes 75 km downstream and returns back to its starting point in 8 hours, find the speed of the motorboat in still water and speed of the stream.

Find the angle of projection for a projectile motion whose range R is n times the maximum height H.