Question

Hi, please make up an example that matches this description

Inelastic rotational 'collision' (analog of linear inelastic collisions): given initial rotational velocities of two objects, as well as enough information to determine moments-of-inertia, determine final rotational velocity, as well as heat generated in 'collision' when they 'collide' (e.g., hit each other and form a composite object). To do this, you will have to first calculate the final angular velocity of the composite object, using conservation of angular momentum, then calculate the change in the total rotational kinetic energy.

Answer #1

EXAMPLE 6.4A Truck Versus a Compact
GOAL Apply conservation of momentum to a one-dimensional inelastic
collision.
PROBLEM A pickup truck with mass 1.80 103 kg is traveling eastbound
at +15.0 m/s, while a compact car with mass 9.00 102 kg is
traveling westbound at −15.0 m/s. (See figure.) The vehicles
collide head-on, becoming entangled. (a) Find the speed
of the entangled vehicles after the collision.
(b) Find the change in the velocity of each
vehicle. (c) Find the change in...

1. You are being hunted by a raptor. It corners you, and begins
to charge, qt a velocity of 20 m/s. You have constructed a trap. It
consists of a trip wire that will knock the raptor down and
transfer all of its KE to a phaser rifle that requires 80 kJ of
energy to fire directly at your foe. If the raptor has a mass of
150 kg, will the rifle gain enough energy to fire?
a)no
b)not enough...

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