2. 1D Motion / Kinematics
Vertical Motion and Free Fall
2. 1D Motion / Kinematics
Vertical Motion and Free Fall
08:36
Additional 6 creators.
Learn with other creators
Showing 9 of 9 videos
Practice this topic
- Multiple Choice
A rock is thrown vertically upward with a speed of 27.0 m/s from the roof of a 31.0-m-tall building. The rock doesn't hit the building on its way back down and lands in the street below. (a) What is the speed of the rock just before it hits the street? (b) How much time elapses from when the rock is thrown until it hits the street?
4887views38rank6comments - Multiple Choice
A student throws a set of keys vertically upward to her sorority sister who is in a window 14.00 m above. The second student catches the keys 1.50 s later. (a) With what initial velocity were the keys thrown? (b) What was the velocity of the keys just before they were caught?
2353views44rank9comments - Multiple ChoiceA steel ball is dropped onto a thick piece of foam. The ball is released 2.0 meters above the foam. The foam compresses as the ball comes to rest. How fast is the ball moving when it first hits the foam? Ignore air resistance.775views
- Multiple ChoiceA steel ball is dropped onto a thick piece of foam. The ball is released 2.5 meters above the foam. The foam compresses as the ball comes to rest. What is the magnitude of the ball's acceleration as it comes to rest on the foam? Ignore air resistance.852views
- Textbook QuestionA hotel elevator ascends 200 m with a maximum speed of 5.0 m/s. Its acceleration and deceleration both have a magnitude of 1.0 m/s². b. How long does it take to make the complete trip from bottom to top?565views
- Textbook QuestionWhen jumping, a flea accelerates at an astounding 1000 m/s^2, but over only the very short distance of 0.50 mm. If a flea jumps straight up, and if air resistance is neglected (a rather poor approximation in this situation), how high does the flea go?2775views1rank1comments
- Textbook QuestionA 200 kg weather rocket is loaded with 100 kg of fuel and fired straight up. It accelerates upward at 30 m/s² for 30 s, then runs out of fuel. Ignore any air resistance effects. a. What is the rocket's maximum altitude?1548views
- Textbook QuestionA 1000 kg weather rocket is launched straight up. The rocket motor provides a constant acceleration for 16 s, then the motor stops. The rocket altitude 20 s after launch is 5100 m. You can ignore any effects of air resistance. What was the rocket's acceleration during the first 16 s?2379views