5, kg દળ ધરાવતા એક પદાર્થ પર અચળ બળ overright | vedclass

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Question

(A) આપેલ માહિતી:દળ $m = 5\, kg$$t = 0\, s$ સમયે વેગ $\vec{u} = (6\hat i - 2\hat j)\, m/s$$t = 10\, s$ સમયે વેગ $\vec{v} = 6\hat j\, m/s$પ્રવેગ $\vec{a

Vedclass · Accepted Answer

$(-3\hat i + 4\hat j)\, N$

Vedclass · Answer

(A) આપેલ માહિતી:દળ $m = 5\, kg$$t = 0\, s$ સમયે વેગ $\vec{u} = (6\hat i - 2\hat j)\, m/s$$t = 10\, s$ સમયે વેગ $\vec{v} = 6\hat j\, m/s$પ્રવેગ $\vec{a} = \frac{\vec{v} - \vec{u}}{t}$$\vec{a} = \frac{6\hat j - (6\hat i - 2\hat j)}{10} = \frac{-6\hat i + 8\hat j}{10} = (-0.6\hat i + 0.8\hat j)\, m/s^2$ન્યૂટનના ગતિના બીજા નિયમ મુજબ,બળ $\vec{F} = m\vec{a}$$\vec{F} = 5 	imes (-0.6\hat i + 0.8\hat j) = (-3\hat i + 4\hat j)\, N$તેથી,સાચો વિકલ્પ $A$ છે.

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