A sports car accelerates uniformly from rest, reaching a speed of 30 meters per second in 6 seconds. During the 6 seconds, the car has traveled…
A coyote can run at a speed of 20 m/s while a prairie dog can manage only 5.5 m/s. If a prairie dog is 45 meters in front of a coyote, how much time does the prairie dog have to reach its hole without being caught?
1220 meters
1020 meters
610 meters
510 meters
100 meters
A model rocket accelerates from rest upwards at 50 m/s2 for 2.0 seconds before its engine burns out. The rocket then coasts upward. What is the maximum height that the rocket reaches? You may assume air resistance is negligible.
respect to time for the object equals 9.8 m/s2.
the speed of the object increases 9.8 m/s during each second
the speed of the object as it falls is 9.8 m/s
the object falls 9.8 meters during the first second only
the rate of change of the displacement with
the object falls 9.8 meters during each second
In the absence of air resistance, an object dropped near the surface of the Earth experiences a constant acceleration of about 9.8 m/s2. This means that…
2.0 m/s2
5.0 m/s2
0.5 m/s2
2.5 m/s2
0.2 m/s2
A bird is flying in a straight line initially at 10 m/s. It uniformly increases its speed to 15 m/s while covering 25 meters. What is the magnitude of the acceleration of the bird?
