Q138 / 270 · NDA 2014 (Phase 2) · General Ability

A bullet is fired vertically up from a 400 m tall tower with a speed $80 \mathrm{~m} / \mathrm{s}$. If $g$ is taken as $10 \mathrm{~m} / \mathrm{s}^2$, the time taken by the bullet to reach the ground will be

A
8 s
B
16 s
Correct answer
C
20 s
D
24 s

Solution

The correct answer is option (C)

Hence, the correct answer is option: 'C'.

Relevant Questions

A pendulum of length oscillates with an angular amplitude of and time period . Let be the time period for small angle of oscillations, where2026 (Phase 1)Physics
Two forces of equal magnitude simultaneously act at a point. It is observed that the resultant force is equal in magnitude to the individual2026 (Phase 1)Physics
A solid of mass has temperature-dependent specific heat as , where and are constants. The solid is heated from to . Which one of the followi2026 (Phase 1)Physics
In a certain process, the relation between pressure and volume , for an ideal gas, is given by . If the initial temperature is and the final2026 (Phase 1)Physics
For an ideal gas, a process is described by , where is a constant. If the molar heat capacity for this process is , then which one of the fo2026 (Phase 1)Physics
For an object in gravitational field, the gravitational potential is the same at two points and , but the gravitational field is not the sam2026 (Phase 1)Physics