A cricket ball is struck from ground level with an initial speed at an angle of above…

PHYSICS · Subjective · CBSE · Physics · Motion in a Plane · Motion in a Plane

Problem

A cricket ball is struck from ground level with an initial speed

20\,\text{m\,s}^{-1}

at an angle of

40^{\circ}

above the horizontal. (a) Calculate the height of the ball when its horizontal displacement from the point of projection is

15\,\text{m}

. Take

g = 9.8\,\text{m\,s}^{-2}

. (b) Determine the vertical component of the velocity of the ball at this instant.