Answer to Question #166304 in Physics for kyle

Question

a particle is subject to a force fx that varies as in the figure below find the work done by the particle as it x=7 to x=15m

Answer 1

$$W_{7\to15}=W_{7\to10}+W_{10\to15}\\ W_{7\to15}=(3)(10-7)+0.5(3)(15-10)=16.5\ J$$