A body is projected horizontally from the top of a tower of height 180 m with a velocity of 20 ms - 1 . If acceleration due to gravity is 10 ms - 2 then match the following. List-I List-II ( A ) Velocity of the body after 1 second ( in ms - 1 ) (I) 5 ( B ) Horizontal displacement of the body after 1 second (in meters) (ii) 20 ( C ) Vertical displacement of the body after 1 second (in meters) (iii) 10 ( D ) Vertical velocity of the body after 1 second ( in ms - 1 ) (iv) 22 . 4 The correct answer is

Question

A body is projected horizontally from the top of a tower of height 180 m with a velocity of 20 ms - 1 . If acceleration due to gravity is 10 ms - 2 then match the following. List-I List-II ( A ) Velocity of the body after 1 second ( in ms - 1 ) (I) 5 ( B ) Horizontal displacement of the body after 1 second (in meters) (ii) 20 ( C ) Vertical displacement of the body after 1 second (in meters) (iii) 10 ( D ) Vertical velocity of the body after 1 second ( in ms - 1 ) (iv) 22 . 4 The correct answer is, A B C D I V I I I I I I, A B C D I I I I I I I V, A B C D I V I I I I I I, A B C D I I I V I I I I

MARKS App · Accepted Answer

The total horizontal displacement after one second is, x = u x t = 20 × 1 = 20 m , Vertical displacement after one second is, y = u y t + 1 2 g t 2 = 0 + 1 2 × 10 1 = 5 m vertical velocity of the body after one second, v y = u y + g t = 0 + 10 × 1 = 10 m s - 1 and velocity of the body after one second, v y 2 + v x 2 = 10 2 + 20 2 = 500 = 22 . 4 m s - 1

List-I		List-II
$(A)$	Velocity of the body after $1$ second $($ in ${ms}^{- 1}$ )	(I)	$5$
$(B)$	Horizontal displacement of the body after $1$ second (in meters)	(ii)	$20$
$(C)$	Vertical displacement of the body after $1$ second (in meters)	(iii)	$10$
$(D)$	Vertical velocity of the body after $1$ second $($ in ${ms}^{- 1}$ )	(iv)	$22.4$

$A$	$B$	$C$	$D$
$I V$	$I I$	$I I I$	$I$

$A$	$B$	$C$	$D$
$I$	$I I$	$I I I$	$I V$

$A$	$B$	$C$	$D$
$I V$	$I I$	$I$	$I I I$

$A$	$B$	$C$	$D$
$I I$	$I V$	$I$	$I I I$

Search any question & find its solution

Looking for more such questions to practice?