At the Stanford Linear Accelerator (SLAC) two protons(rest mass: m_p) are accele

Question

At the Stanford Linear Accelerator (SLAC) two protons(rest mass: m_p) are accelerated to 4/5 ths the speed of light (0.8c). Suppose they are forced to collide head-on such that the product of the collision is not moving at all with respect to the lab. Immediately after this collision: the mass of the products will be 1 m_p the mass of the products will be 2 m_p the mass of the products will be 3.3 m_p the mass of the products will be zero the mass of the products could be negative if they include antimatter

Explanation / Answer

in headon collision

law of conservation of momentum is valid,then

initial momentum = final momentum

(mp*0.8c)-(mp*0.8c) = 0

the velocity of the collision is not moving So momentum after the collision is zero

but the mass of the produts = mass of the reactants = 2 mp

So the correct option is B) the mass of the products is 2 mp

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