An electron has a speed of $5 \times 10^{6}\ \text{m s}^{-1}$. A neutron has a speed of $5 \times 10^{4}\ \text{m s}^{-1}$. The electron’s mass is $m$. The neutron’s mass is $2000m$. Which row is correct?
Physics 0625 · IGCSE · Momentum
An electron has a speed of $5 \times 10^{6}\ \text{m s}^{-1}$. A neutron has a speed of $5 \times 10^{4}\ \text{m s}^{-1}$. The electron’s mass is $m$. The neutron’s mass is $2000m$. Which row is correct?