A bomb, initially at rest, explodes into several pieces. the  linear momentum of the system (the bomb before the explosion, the pieces after the explosion) conserved?

True

False



QUESTION 19

An object of mass m moves with acceleration aS down a rough incline. Which of the following forces should not appear in a free-body diagram of the object?

a. the gravitational force exerted by the planet

b. m aS in the direction of motion

c. the normal force exerted by the incline

d. the friction force exerted by the incline