(A) Given: Mass $M = 500 \, kg$,initial velocity $u = 2 \, ms^{-1}$,acceleration $a = 2 \, ms^{-2}$,and distance $s = 6 \, m$.Using the kinematic equa

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(A) Given: Mass $M = 500 \, kg$,initial velocity $u = 2 \, ms^{-1}$,acceleration $a = 2 \, ms^{-2}$,and distance $s = 6 \, m$.Using the kinematic equation $v^2 = u^2 + 2as$ to find the final velocity $v$:$v^2 = (2)^2 + 2(2)(6)$$v^2 = 4 + 24 = 28 \, m^2s^{-2}$.The kinetic energy $KE$ is given by the formula $KE = \frac{1}{2} Mv^2$.Substituting the values:$KE = \frac{1}{2} \times 500 \times 28$$KE = 250 \times 28 = 7000 \, J$.Converting to kilojoules: $7000 \, J = 7 \, kJ$.

Class 11 Physics Motion in Straight Line Uniformly Accelerated Motion

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$A$ lift of mass $M = 500 \, kg$ is descending with a speed of $2 \, ms^{-1}$. Its supporting cable begins to slip,thus allowing it to fall with a constant acceleration of $2 \, ms^{-2}$. The kinetic energy of the lift at the end of a fall through a distance of $6 \, m$ will be $........... \, kJ$.

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$A$ lift of mass $M = 500 \, kg$ is descending with a speed of $2 \, ms^{-1}$. Its supporting cable begins to slip,thus allowing it to fall with a constant acceleration of $2 \, ms^{-2}$. The kinetic energy of the lift at the end of a fall through a distance of $6 \, m$ will be $........... \, kJ$.

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$A$ particle starts from origin $O$ from rest and moves with a uniform acceleration along the positive $x$-axis. Identify all figures that correctly represent the motion qualitatively. ($a =$ acceleration,$v =$ velocity,$x =$ displacement,$t =$ time)

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