Two discs of the same mass 2.5 kg collide from the front. If before the collision both move with the same speed and one towards the other determine the speeds of the discs after the collision if half of the kinetic energy is lost in the collision.
Added by Nicole G.
Step 1
Before the collision, both discs move with the same speed towards each other. Let's call this speed "v". Show more…
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Two smooth disks $A$ and $B$ each have a mass of $0.5 \mathrm{kg}$ If both disks are moving with the velocities shown when they collide, determine their final velocities just after collision. The coefficient of restitution is $e=0.75$.
Disk A has a mass of 250 g and is sliding on a smooth horizontal surface with an initial velocity (vA)1 = 2 m/s. It makes a direct collision with disk B, which has a mass of 175 g and is originally at rest. If both disks are of the same size and the collision is perfectly elastic (e = 1), determine the velocity of each disk just after the collision. Show that the kinetic energy of the disks before and after the collision is the same.
Penny R.
Disk $A$ has a mass of $250 \mathrm{g}$ and is sliding on a smooth horizontal surface with an initial velocity $\left(v_{A}\right)_{1}=2 \mathrm{m} / \mathrm{s}$. It makes a direct collision with disk $B,$ which has a mass of $175 \mathrm{g}$ and is originally at rest. If both disks are of the same size and the collision is perfectly elastic $(e=1)$ determine the velocity of cach disk just after collision. Show that the kinetic energy of the disks before and after collision is the same.
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