Abox moves 5 m horizontally when force F = 20 N is applied at angle 0 = 135 F
What is the work done on the box by F during the displacement?
Choose 1
100J
-79.7j
-100j
70.7j

Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?

The energy released by a nuclear fusion reaction is produced when

Atruck driver is attempting to deliver some furniture. first, he travels 8 km east, and then he turns around and travels 3 km west. finally, he turns again and travels 13 km to his destination. what is the drivers distance