Question 35: Motion in 2D & Vectors

Question

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 :
[Take $$g=10 \mathrm{~ms}^{-2}$$]

Accepted Answer

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

Answer

$$1: 2$$

Answer

$$\sqrt{2}: 1$$

Answer

$$1: \sqrt{2}$$

Answer

$$1: \sqrt{3}$$

Motion in 2D & Vectors

Projectiles A and B are thrown at angles of $45^{\circ} and 60^{\circ} with vertical respectively from top of a 400 \mathrm{~m} high tower. If their ranges and times of flight are same, the ratio of their speeds of projection v_A: v_B is : [Take g=10 \mathrm{~ms}^{-2}$]

Choose the correct answer: