Question

A fission device explodes into two pieces of rest masses 𝑚 and 0.5𝑚 with no loss of energy into any other form. These masses move apart respectively with speeds $\frac{c}{ √13}$ and $\frac{c}{2}$ , with respect to the stationary frame. If the rest mass of the device is 𝑓𝑚 then 𝑓 is________ (rounded off to two decimal places).

Answer 1

The correct answer is: 1.60 to 1.64 (approx)