The formula for kinetic energy is KE = 0.5*m*v^2, where m is the mass and v is the velocity (speed).
Plugging in the given values, we get:
KE = 0.5*(35 kg)*(3.0 m/s)^2
KE = 0.5*(35 kg)*(9 m^2/s^2)
KE = 157.5 J
Rounded to the nearest whole number, the answer is (b) 158 J.