A boy throws a ball of mass 200g with a velocity `20ms^-1` at an angle of 40° with the horizontal. What is the kinetic energy of the ball at the highest point of the trajectory?

A boy throws a cricket ball with a velocity u at an angle theta with the horizontal.Name the path followed by the ball.

A ball of mass m is projected at an angle with the ground and it is found that its kinetic energy at the highest point is 75% of that at the point of projection. a)Is it a one dimensional or a two dimensional motion?Why? b)Find the angle of projection. c)Determine another angle of projection which produces the same range.

At what angle with the horizontal should a base ball be thrown so as to hit the farthest point ?