Given this equation: m(moving) = m(rest) / (1-(u/c)^2)^1/2
Calculate the mass of a tennis ball moving at the speed of light
u and c are the speed of the particles and light
the mass of the tennis ball is 6.0x10^-2
speed of light= 3.0x10^8
it doesn't have to be this equation
Thanksssss!!