A lorry and a car moving with the same $K.E.$ are brought to rest by applying the same retarding force, then
Lorry will come to rest in a shorter distance
Car will come to rest in a shorter distance
Both come to rest in a same distance
None of the above
In an elastic collision between disks $A$ and $B$ of equal mass but unequal radii, $A$ moves along the $x$ -axis and $B$ is stationary before impact. Which of the following is possible after impact?
A body $A,$ of mass $m=0.1\; kg$ has an initial velocity of $3 \hat{\mathrm{i}}\; \mathrm{ms}^{-1} .$ It collides elastically with another body, $\mathrm{B}$ of the same mass which has an initial velocity of $5 \hat{\mathrm{j}} \;\mathrm{ms}^{-1}$. After collision. A moves with a velocity $\overline{\mathrm{v}}=4(\hat{\mathrm{i}}+\hat{\mathrm{j}})$. The energy of $\mathrm{B}$ after collision is written as $\frac{\mathrm{x}}{10} \;\mathrm{J}$ The value of $x$ is
Explain oblique collision.
A body of mass $2\,kg$ makes an elastic collision with a second body at rest and continues to move in the original direction but with one fourth of its original speed. What is the mass of the second body? ................ $ \mathrm{kg}$
In figure, determine the type of the collision The masses of the blocks, and the velocities before and after the collision are given. The collision is