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(B) The horizontal distance covered in a long-jump is equivalent to the range of a projectile. The formula for the horizontal range $R$ is given by $R

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The direction in which he leaps and the initial speed

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(B) The horizontal distance covered in a long-jump is equivalent to the range of a projectile. The formula for the horizontal range $R$ is given by $R = \frac{u^2 \sin(2	heta)}{g}$,where $u$ is the initial speed,$	heta$ is the angle of projection,and $g$ is the acceleration due to gravity.From this formula,it is clear that the range $R$ depends on the initial speed $u$ and the angle of projection $	heta$ (the direction in which the athlete leaps).Therefore,the correct set of factors is the direction in which he leaps and the initial speed.

$A$. Velocity of the body after $1 \,s$ (in $ms^{-1}$)	$I$. $5$
$B$. Horizontal displacement of the body after $1 \,s$ (in $m$)	$II$. $20$
$C$. Vertical displacement of the body after $1 \,s$ (in $m$)	$III$. $10$
$D$. Vertical velocity of the body after $1 \,s$ (in $ms^{-1}$)	$IV$. $22.4$

Which of the following sets of factors will affect the horizontal distance covered by an athlete in a long-jump event?

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