VI. Compune forțele concurente: F1 = 12 N, F2 = 7 N și F3 = 5 N, ale căror direcții sunt reprezentate în figura următoare (α = 300
).

Aman pushes on a trunk with a force of 250 newtons. the trunk does not move. how much positive work is done on the trunk? 0.0 j -250 j 250 j 125 j

1400 kg car has a speed of 27 m/s. if it takes 7 s to stop the car, what is the impulse and the average force acting on the car?

Efficiency is the ratio of to for a system a)power in to power in b)power in to power out c) power out to power out d) power out to power in