Calculate the effective radiation dosage (in rems) for a 73-kg person who is exposed to 3.0 x 109 particles of alpha radiation. assume that 79% of the radiation is absorbed, each alpha particle has an energy of 7.7x10 j, and that the rbe of the alpha particles is 15. note that rbe is sometimes called quality factor, abbreviated as q. number 0.03465 rem

Velocity is defined by rate of change in the position

which we can also write as

while acceleration is defined as rate of change in velocity

so acceleration and velocity both are rate of change in position and rate of change in velocity with respect to time respectively

out of all above statement the correct answer must be

Acceleration equals change in velocity divided by time.