A straight-line graph between kinetic energy and for a toy car passes through the…

PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A straight-line graph between kinetic energy and

v^2

for a toy car passes through the points (

v^2 = 4\,\text{m}^2/\text{s}^2

\text{KE} = 6\,\text{J}

) and (

v^2 = 9\,\text{m}^2/\text{s}^2

\text{KE} = 13.5\,\text{J}

). Calculate the mass of the toy car.