When 200 joules of work is done on a system by an external force of 15 newtons in 20. seconds, the total energy of that system increases by (1) 1.5 × 102 J (2) 3.0 × 102 J (3) 2.0 × 102 J (4) 2.3 × 103 J W = ΔK

increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles