Two balls A and B are thrown with same velocity u from the top of… - Vidyadip

MCQ

Two balls $A$ and $B$ are thrown with same velocity $u$ from the top of a tower. Ball $A$ is thrown vertically upwards and the ball $B$ is thrown vertically downwards. If a ball $C$ is thrown with the same velocity but in the horizontal direction from the top of the tower,If $t_A = 6\ s$ and $t_B = 2\ s$ then it will reach the ground in time $t_c$ equal to........$s$

A
$4$
✓
$3.46$
C
$4.2$
D
none of these

✓

Answer

Correct option: B.

$3.46$

b
$t_c=\sqrt{t_A\cdot t_B}$

$t_c=\sqrt{6\cdot 2}$

$t_c=3.46$

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