3-2.Motion in Plane
easy

સમક્ષિતિજથી $30^{\circ}$ ના ખુણે $20 \,ms ^{-1}$ ની ઝડપે પ્રક્ષેપિત કરેલા પદાર્થનો ઉડ્ડયન સમય ............. $s$ હશે?

A

$1$

B

$4$

C

$2$

D

$6$

Solution

(c)

$T =\frac{2 v \sin \theta}{g}$

$=\frac{2 \times 20 \times \sin 30^{\circ}}{1 \phi}$

$2 \times 2 \times \frac{1}{2}=2$

Standard 11
Physics

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