A ball is dropped from a height h. As it boun | vedclass

Name: PDF Generator App | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

$a=g$

$u=0$

$v=? ?$

$s=h$

$v^{2}-u^{2}=2 a s$

$\Rightarrow v^{2}=2 g h$

$\Rightarrow \quad v=\sqrt{2 g h}$

$u=0 \cdot 8 \sqrt{2 g

Vedclass · Accepted Answer

$0.64$

Vedclass · Answer

$a=g$

$u=0$

$v=? ?$

$s=h$

$v^{2}-u^{2}=2 a s$

$\Rightarrow v^{2}=2 g h$

$\Rightarrow \quad v=\sqrt{2 g h}$

$u=0 \cdot 8 \sqrt{2 g h}$

$v=0$

$a=-g$

$s=? ?$

$v^{2}-u^{2}=2 a s$

$\Rightarrow e^{2}-0.64 	imes 2 g h=2(-g)^{5}$

$\Rightarrow 0.64 	imes 2 g  h=2 g S$

$S=0.64 \mathrm{h}$

$A$ ball is dropped from $a$ height $h$. As it bounces off the floor, its speed is $80$ percent of what it was just before it hit the floor. The ball will then rise to $a$ height of most nearly .............. $\mathrm{h}$

Similar Questions

Force acting on a particle moving in a straight line varies with the velocity of the particle as $F = \frac{K}{\upsilon }$ where $K$ is a constant. The work done by this force in time $t$ is

A bomb of mass $9\, kg$ explodes into two pieces of masses $3\, kg$ and $6\, kg$. The velocity of mass $3\, kg$ is $16\, m/s$. The $KE$ of mass $6\, kg$ (in joule) is

The kinetic energy acquired by a body of mass m is travelling some distance s, starting from rest under the actions of a constant force, is directly proportional to

The bob of a pendulum of length $l$ is pulled aside from its equilibrium position through an angle $\theta $ and then released. The bob will then pass through its equilibrium position with speed $v$ , where $v$ equals

A mass of $0.5\, kg$ moving with a speed of $1.5\, m/s$ on a horizontal smooth surface, collides with a nearly weightless spring of force constant $k=50\,N/m$. The maximum compression of the spring would be ................. $\mathrm{m}$