Ten questions. The result tells you which lessons you may skip.
A \(3\,\text{kg}\) ball moving at \(4\,\text{m/s}\) strikes a \(1\,\text{kg}\) ball at rest, head-on. At the instant of greatest deformation, both balls move at
A \(1\,\text{kg}\) block moving at \(2\,\text{m/s}\) on a smooth floor strikes a \(1\,\text{kg}\) block at rest that carries a light spring of constant \(200\,\text{N/m}\). The greatest compression of the spring is
A \(1\,\text{kg}\) ball moving at \(6\,\text{m/s}\) hits a \(2\,\text{kg}\) ball at rest and sticks to it. The kinetic energy lost is
A \(1\,\text{kg}\) ball moving at \(3\,\text{m/s}\) makes an elastic head-on collision with a \(2\,\text{kg}\) ball at rest. After the collision the \(1\,\text{kg}\) ball
A ball strikes an identical ball at rest, head-on and elastically. After the collision
A ball is dropped from \(2\,\text{m}\) onto a floor with \(e = 0.5\). It rises after the first bounce to
A \(10\,\text{g}\) bullet stays inside a \(1.99\,\text{kg}\) block hanging from strings, and the block rises \(5\,\text{cm}\). Take \(g = 10\,\text{m/s}^2\). The speed of the bullet was
Two smooth balls collide obliquely with \(e = 0.5\). The coefficient of restitution applies to
A ball strikes a smooth floor at \(10\,\text{m/s}\), at \(37°\) to the normal, with \(e = 0.5\). Take \(\sin 37° = 0.6\) and \(\cos 37° = 0.8\). It rebounds at about
A puck strikes an identical puck at rest, off-centre, in an elastic collision on smooth ice. The angle between their paths afterwards is