QuestionsQuestion 1 | Mechanics
An airplane accelerates down a runway at 3.20 m s-2 for 32.8 s until is finally lifts off the ground. Determine the distance traveled before takeoff. Question 2 | Mechanics A feather is dropped on the moon from a height of 1.40 meters. The acceleration of gravity on the moon is 1.67 m s-2. Determine the time for the feather to fall to the surface of the moon. Question 3 | Mechanics A tortoise and a hare are in a road race to defend the honor of their breed. The tortoise crawls the entire 1000 meters at a speed of 0.2 m s-1. The rabbit runs the first 200 meters at 2 m s-1, stops to take a nap for 1.3 hours, and awakens to finish the last 800 meters with an average speed of 3 m s-1. Who wins the race and by how much time? Question 4 | Mechanics A racecar can accelerate at 8.9 m/s2 ; if the car starts from 10 m/s, after 2.1 seconds how fast is it going? Question 5 | Mechanics If you drop something from rest off a 10.3 m high building, how long will it take to hit the ground? Question 6 | Mechanics A penguin slides down a hill in the Arctic in 7 seconds. If the penguin started from rest and gains a speed of 1.9 m/s, what is its acceleration? |