(C) For a body projected horizontally from a height $h$,the time taken to reach the ground is given by $t = \sqrt{\frac{2h}{g}}$.Given $h = 5 \, m$ an

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(C) For a body projected horizontally from a height $h$,the time taken to reach the ground is given by $t = \sqrt{\frac{2h}{g}}$.Given $h = 5 \, m$ and $g = 10 \, m/s^2$,we have $t = \sqrt{\frac{2 \times 5}{10}} = \sqrt{1} = 1 \, s$.The horizontal distance (range) $R$ is given by $R = u \times t$,where $u$ is the initial horizontal velocity.Given $R = 10 \, m$,we have $10 = u \times 1$.Therefore,$u = 10 \, m/s$.

Class 11 Physics 3-2.Motion in Plane Horizontal Projectile Motion

Medium

$A$ body is thrown horizontally from the top of a tower of height $5 \, m$. It touches the ground at a distance of $10 \, m$ from the foot of the tower. The initial velocity of the body is ......... $m/s$ $(g = 10 \, m/s^2)$.

A
$2.5$
B
$5$
C
$10$
D
$20$

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Class 11

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Chapter

3-2.Motion in Plane

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Horizontal Projectile Motion

On which factors does the value of the range of a projectile depend? On which factors does the maximum value of the range depend?

Medium

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$A$ projectile is thrown with velocity $u$ making an angle $\theta$ with the vertical. It just crosses the tops of two poles each of height $h$ after $1\,s$ and $3\,s$,respectively. The maximum height of the projectile is ............ $m$.

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$A$ shell is fired vertically upwards with a velocity $v_1$ from a trolley moving horizontally with velocity $v_2$. $A$ person on the ground observes the motion of the shell as a parabola,whose horizontal range is ....

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$A$ projectile has a range of $1.5 \ km$ when projected at an angle of $15^{\circ}$. Find the range of the projectile when it is projected at an angle of $45^{\circ}$ with the same velocity. (in $km$)

Medium

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Define projectile motion and projectile particle.

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$A$ body is thrown horizontally from the top of a tower of height $5 \, m$. It touches the ground at a distance of $10 \, m$ from the foot of the tower. The initial velocity of the body is ......... $m/s$ $(g = 10 \, m/s^2)$.

Similar Questions

On which factors does the value of the range of a projectile depend? On which factors does the maximum value of the range depend?

$A$ projectile is thrown with velocity $u$ making an angle $\theta$ with the vertical. It just crosses the tops of two poles each of height $h$ after $1\,s$ and $3\,s$,respectively. The maximum height of the projectile is ............ $m$.

$A$ shell is fired vertically upwards with a velocity $v_1$ from a trolley moving horizontally with velocity $v_2$. $A$ person on the ground observes the motion of the shell as a parabola,whose horizontal range is ....

$A$ projectile has a range of $1.5 \ km$ when projected at an angle of $15^{\circ}$. Find the range of the projectile when it is projected at an angle of $45^{\circ}$ with the same velocity. (in $km$)

Define projectile motion and projectile particle.

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