Reference no: EM13999961
1. A bird can fly 33.0 km/hr. How long (in hours) does it take to fly 530 km?
2. A rock thrown horizontally at a large bell 56.0 m away is heard to hit the bell 4.10 s later. If the speed of sound is 330 m/s, what was the speed of the rock?
3. At high speeds, a particular automobile is capable of an acceleration of about 0.510 m/s2. At this rate, how long does it take to accelerate from 96.0 km/hr to 103 km/hr?
4. A kangaroo jumps to a vertical height of 242 cm. How long (in seconds) was the kangaroo in the air?
5. An advertisement claims that a sportscar can accelerate from rest to 100 km/hr in 7.80 s. What is its acceleration?
6. A falling stone takes 0.330 s to pass a window 2.30 m high. From what height (in meters) above the top of the window did the stone fall?
7. Two trains approach each other on parallel tracks. Each has a speed of 60.0 km/hr with respect to the earth. If they are initially 17.0 km apart, how long (in seconds) will it be before they pass each other?
8. A motorcycle traveling 91.0 km/hr approaches a car traveling in the same direction at 84.0 km/hr. When the motorcycle is 54.0 m behind the car, the rider accelerates and passes the car 16.0 s later. What is the acceleration of the motorcycle?
9. A skier is accelerating down a 30.0 degree hill at 3.50 m/s^2. How long will it take her to reach the bottom of the hill, assuming she starts from rest and accelerates uniformly, if the elevation change is 180 m?
10.) A deliveryman travels 32.0 m north, 22.0 m east, 15.0 m south, then takes an elevator 33.0 m up into a building. What is the magnitude of his displacement from his starting point?
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