#1. Which one correct?
#2. A stone is dropped from rest at the top of a building. After 3 s of free-fall, What is the displacement of the stone.
#3. From Question NO.2, What is the velocity at 3 second after is dropped from the building.
#4. A ball is thrown vertically upward with an initial speed of 30 m/s In the absence of air resistance. How high does ball go?
#5. From question NO.4, What is the total time the ball is in the air before returning to the ground?
#6. During a flight an aircraft fly 11 km with velocity 21 m/s but then fly in the same direction with 1 km at velocity 4.2 m/s determine the average velocity of the aircraft?
#7. An aircraft moving horizontally with velocity 115 m/s at an altitude of 1050 m. The plane release a care package that falls to along a curved trajectory. Determine the time before the package hit the ground?
#8. A sled traveling at 4 m/s, enter a horizontal stretch of snow, The coefficient of kinetic friction is 0.05. How far does the sled go before stopping?
#9. A 500-g ball lying on the ground is kicked with a force of 100 N. If the kick lasted 0.04s the ball flew off with a speed of?
#10. An 80-kg firefighter slides down a brass pole 8.0 m high in a fire station while exerting a friction force of 600 N on the pole. He reaches the bottom of the pole in the time of?