Physics Kinematics Level: Misc Level
When an object moves with constant velocity, does its average velocity during any time interval differ from its instenous velocity at any instant? Please elaborate.
Physics Kinematics Level: Misc Level
3.48 A seagull flies at a velocity of 9.00 m/s2 straight into the wind.a) if it takes the bird 20.0 min to travel 6.00 km relative to earth, what is the velocity of the wind?
Physics Kinematics Level: Misc Level
A ranger in a national park is driving at 27.4 mi/hr when a deer jumps into the road of the vehicle. After a reaction time of t the ranger applies the brakes to produce an acceleration of -8.96 ft/s^2. What is the maximum reaction time allowed if she is to avoid hitting the deer? Answer in units of s
Physics Kinematics Level: Misc Level
A brick is thrown horizontally from the top of a building with an initial speed of 15 m/s. It strikes the ground after 3 seconds.How high is the building?
Physics Kinematics Level: Misc Level
You are in a motorboat that moves at 40 km/hr in still water.How long will it take you to travel 15 km upsttream in a river flowing at 6 km/hr.
Physics Kinematics Level: Misc Level
A jet fighter plane is launched from a catapult on an aircraft carrier.It reaches a speed of 32 m/s at the end of the catapult, and this requires 3.0 seconds. Assuming the acceleration is constant, what is the length of the catapult?
Physics Kinematics Level: Misc Level
After touching down on a runway, an airplane is brought to a stop in 15 seconds. If the acceleration of the plane was a cotant -6.5 m/s2, what was the speed of the plane at touchdown?
Physics Kinematics Level: Misc Level
A package sitting on a shlef 2 m high is knocked off, calculate the velocity of the box when it hits the floor, using a displacement /velocity/acceleration equation, and conservation of energy.
Physics Kinematics Level: Misc Level
an object, initially at rest is dropped from a height of 20 m what is the speed of the object when it hits the ground? (assume g=10 m/s^2)
Physics Kinematics Level: Misc Level
It takes 0.210 s for a dropped object to pass a window that is 1.35 m tall. From what height above the window was the object released?
Physics Kinematics Level: Misc Level
A quantity that is a measure of how the distance traveled changes with time is
a.displacement
b. speed
c.acceleration
d.momentum
Physics Kinematics Level: Misc Level
The velocity of a body is graphed as a function of time.The slope of the graph at any point may be identified with
a. instaneous velocity
b. average velocity
c. instaneous speed
d. instaneous acceleration
e. average acceleration
Physics Kinematics Level: Misc Level
If your average speed for a 3-hr trip is 45 mi/hr, the distance traveled is
a. 15 mi
b. 45 mi
c 135 mi
d. 202.5 mi
Physics Kinematics Level: Misc Level
A diver is observed jumping from a cliff and striking the water below 3.4 sec later. How high is cliff?
Physics Kinematics Level: Misc Level
A rock dropped from a cliff hits the ground 9.5 seconds later.How high is the cliff?
