Motion In Two Dimensions Question 5

Question 5 - 2024 (30 Jan Shift 2)

Projectiles A and B are thrown at angles of $45^{\circ}$ and $60^{\circ}$ with vertical respectively from top of a $400 \mathrm{~m}$ high tower. If their ranges and times of flight are same, the ratio of their speeds of projection $v_{A}: v_{B}$ is :

[We changed options. In official NTA paper no option was correct.]

(1) $1: \sqrt{3}$

(2) $\sqrt{2}: 1$

(3) $1: 2$

(4) $1: 1$

Show Answer

Answer: (4)

Solution:

For $\mathrm{u}{\mathrm{A}} & \mathrm{u}{\mathrm{B}}$ time of flight and range can not be same. So above options are incorrect.