Question

A boy weighing 50 kg finished long jump at a distance of 8 m. Considering, that he

moved along a parabolic path and his angle of jump was 45°, his initial Ke will be
​

Answer 1

Answer:

steps and answers in the picture

there also a long methord which you have to get 2 equation vertically and horizontally using following equation

s= ut + 1/2at^2

and after you getting those 2 equation..you have to substitute one equation to other eqaution

using the above methord you can also find the velocity