An aeroplane is moving with a velocity $u$. It drops a packet from a height $h$. The time $t$ taken by the packet in reaching the ground will be
An aeroplane is moving with a velocity $u$. It drops a packet from a height $h$. The time $t$ taken by the packet in reaching the ground will be
- A
$\sqrt {\left( {\frac{{2g}}{h}} \right)} $
- B
$\sqrt {\left( {\frac{{2u}}{g}} \right)} $
- C
$\sqrt {\left( {\frac{h}{{2g}}} \right)} $
- D
$\sqrt {\left( {\frac{{2h}}{g}} \right)} $
Similar Questions
A particle is projected horizontally from a tower with velocity $10\,m / s$. Taking $g=10\,m / s ^2$. Match the following two columns at time $t=1\,s$.
Column $I$
Column $II$
$(A)$ Horizontal component of velocity
$(p)$ $5$ SI unit
$(B)$ Vertical component of velocity
$(q)$ $10$ SI unit
$(C)$ Horizontal displacement
$(r)$ $15$ SI unit
$(D)$ Vertical displacement
$(s)$ $20$ SI unit
A particle is projected horizontally from a tower with velocity $10\,m / s$. Taking $g=10\,m / s ^2$. Match the following two columns at time $t=1\,s$.
| Column $I$ | Column $II$ |
| $(A)$ Horizontal component of velocity | $(p)$ $5$ SI unit |
| $(B)$ Vertical component of velocity | $(q)$ $10$ SI unit |
| $(C)$ Horizontal displacement | $(r)$ $15$ SI unit |
| $(D)$ Vertical displacement | $(s)$ $20$ SI unit |
A missile is fired in horizontal direction from a height of $20\,m$ at a speed of $1000\, m/s.$ At what distance of ground will the missile land ?
A missile is fired in horizontal direction from a height of $20\,m$ at a speed of $1000\, m/s.$ At what distance of ground will the missile land ?
A bomber plane moves horizontally with a speed of $500\, m/s$ and a bomb released from it, strikes the ground in $10\, sec$. Angle at which it strikes the ground will be $(g = 10\,\,m/{s^2})$
A bomber plane moves horizontally with a speed of $500\, m/s$ and a bomb released from it, strikes the ground in $10\, sec$. Angle at which it strikes the ground will be $(g = 10\,\,m/{s^2})$
Particle is dropped from the height of $20\,\,m$ on horizontal ground. There is wind blowing due to which horizontal acceleration of the particle becomes $6\,\,ms^{-2}$ . Find the horizontal displacement of the particle till it reaches ground.......$m$
A mouse jumps off from the $15$ th floor of a high-rise building and lands $12 \,m$ from the building. Assume that, each floor is of $3 \,m$ height. The horizontal speed with which the mouse jumps is closest to ...............$km /h$
A mouse jumps off from the $15$ th floor of a high-rise building and lands $12 \,m$ from the building. Assume that, each floor is of $3 \,m$ height. The horizontal speed with which the mouse jumps is closest to ...............$km /h$
- [KVPY 2020]