Einstein's dream
Classical Mechanics
Level
3
Little Einstein is being chased by his history teacher. To escape her, he rides his bike at the speed of \(\frac{3c}{5}\). If his rest mass is \(40 \text{kg}\), find his relativistic mass (in \(\text{kg}\)).
Clarification: \(c\) denotes the speed of light in vacuum.
by
Swapnil Das