Higher Math 2nd Paper MCQ-Rajshahi Board-2023

1. If a stone is dropped from 50 meters height, how many seconds it will take to reach the ground?

2. Of the complex number $z=-1-i$

i. argument is $-\frac{3 \pi}{4}$

ii. real part is -1

iii. conjugate complex number is $I-i$

Which one is correct?

3. Three forces of value $\sqrt{3}, 1$ and 2 acting at a point are in equilibrium. Which one is the angle between the first two forces?

4. A stone is thrown with the velocity $19.6 \mathrm{~m} / \mathrm{sec}$. at an angle $30^{\circ}$ with the horizon.

What is the maximum height of the stone in meters?

5. A stone is thrown with the velocity $19.6 \mathrm{~m} / \mathrm{sec}$. at an angle $30^{\circ}$ with the horizon.

What is the time of flight of the stone?