A body is thrown vertically upwards and rises to a height of 10m. The velocity with which the body was thrown upwards is: ( $g = 9.8 {\frac{m}{s}}^{2}$ )

16 m/s

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15 m/s

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14 m/s

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12 m/s

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Solution

The correct option is C
14 m/s

Here,

v = 0, h = 10m
$a = - 9.8 {\frac{m}{s}}^{2}$

Using , $v^{2}$ = $u^{2}$ + 2ah

$0 = u^{2} - (2 \times 9.8 \times 10)$

$u^{2}$ = 196

$u = 14 \frac{m}{s}$

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A body is thrown vertically upwards and rises to a height of 10m. The velocity with which the body was thrown upwards is: (g=9.8ms2)

The correct option is C 14 m/s Here, v = 0, h = 10m a=−9.8ms2 Using , v2 = u2 + 2ah 0=u2−(2×9.8×10) u2 = 196 u=14ms

A body is thrown vertically upwards and rises to a height of 10m. The velocity with which the body was thrown upwards is: ( $g = 9.8 {\frac{m}{s}}^{2}$ )

The correct option is C
14 m/s

Here,

v = 0, h = 10m
$a = - 9.8 {\frac{m}{s}}^{2}$

Using , $v^{2}$ = $u^{2}$ + 2ah

$0 = u^{2} - (2 \times 9.8 \times 10)$

$u^{2}$ = 196

$u = 14 \frac{m}{s}$