Answer:
it would take him 1 minute to run 304.5 meters and 1 second to run 5.075 meters
Explanation:
the following statements show contact force, except _____
a. closing your room's door
b. pushing your desk
c. shooting a ball on the floor using a rope
d. pulling a 10kg box on the floor using a rope
Answer:
d. pulling a 10kg box on the floor using a rope
You exert a force of 200 N on a lever over a distance of 4.6 m. You ultimately lift an 11 kg load 2.3 m off the ground. What is the efficiency of this lever?
Answer:
56142e3456834567856783446357
Explanation:
4535x346326432x5636432784372=3853785