Physics Kinematics Level: Misc Level
Gary drops a water balloon out the classroom window 14 m above the ground. what is its speed when it hits the ground?
Physics Kinematics Level: Misc Level
A dragster funny car accelerates down the quarter-mile strip in 4.25 seconds.
a.what is the funny cars average velocity for the run (in m/sec)?
b.what is the funny car s average acceleration for the run in m/sec square and in g,s?
Physics Kinematics Level: Misc Level
A rocket is launched at an angle of 53 degrees above the horizontal with an initial speed of 75 m/s. It moves 25 s along its initial line of motion with an overall acceleration of 25 m/s. At this time its engines fail and rocket proceeds to move as a free body.
A.What is the rockets maximum altitude?
B. What is the rockets total time of flight?
C. What is the rockets horizontal range?
The answeres to these are:
A. 24000 m
B. 152 s
C.78000 m
Physics Kinematics Level: University
CapacitorAn electric field of 710 V/m is desired between two parallel plates 17.7mm apart. How large a voltage should be applied?
Physics Kinematics Level: University
A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 24.0o below the horizontal. The negligent driver leaves the car in neutral and the emergency brakes are defective. The car rolls from rest down the incline with a constant acceleration of 4.00 m/s2 (second square) for a distance of 50.0 m to the edge of the cliff. The cliff is 30.0 m above the ocean. Find (a) The car's position relative to the base of the cliff when the car lands in the ocean and (b) The lenght of time the car is in the air.
Physics Kinematics Level: High School
In Bosnia ,the ultimate test of a young man’s courage once was to jump off a 400 year old bridge (now destroyed) into the River Neretva, 21 meters below the bridge . The free fall acceleration is 9.80 m/s^2 .a) How long did the jump last ?
b) How fast was the diver traveling upon impact with the river ?
c) If the speed of sound in air is 339 m/s , how long after the diver took off did a spectator on the bridge hear the splash ?
Physics Kinematics Level: High School
Another scheme to catch the roadrunner has failed .Now a safe falls from rest from the top of a 20.5 meter high cliff toward Wile E . Coyote , who is standing at the base . Wile fist notices the safe after it has fallen 16.0 meters . How long does he have to get out of the way ? The free fall acceleration is 9.80 m/s^2 .
Physics Kinematics Level: High School
The driver of a truck slams on the brakes when he sees a tree blocking the road . The truck slows down uniformly with an acceleration of -4.90 m/s^2 for 3.80 s , making skid marks 54.1 m long that end at the tree . With what speed does the truck then hit the tree ?
Physics Kinematics Level: High School
Projectile motion
A projectile is launched with an initial speed of 60.0 m/s at an angle of 30.0 degrees above the horizontal . The projectile lands on a hillside 4.00 s later . Neglect air friction.
a) What is the projectile velocity at the highest point of its trajectory ?
b) What is the straight line distance from where the projectile was launched to where it hits its target ?
Physics Kinematics Level: High School
Projectile motion
A brick is thrown upward from the top of a building at an angle of 25 degrees to the horizontal and with an initial speed of 15 m/s . If the brick is in flight for 3.0 s , how tall is the building ?
Physics Kinematics Level: High School
Projectile motion
Tom the cat is chasing Jerry the mouse across the surface of a table 1.5 m above the floor . Jerry steps out of the way at the last second and Tom slides off the edge of the table at a speed of 5.0 m/s .Where will Tom strike the floor and what velocity components will he have just before he hits ?
Physics Kinematics Level: High School
Projectile motion
One of the fastest recorded pitches in major league baseball was clocked at 101.0 mi/h . If a pitch were thrown horizontally with this velocity , how far would the ball fall vertically by the time it reached home plate 60.5 ft away ?
Physics Kinematics Level: High School
projectile motion
A football player kicks a ball at an angle of 37o from the horizontal with an initial speed of 50 ft/sec , and the ball moves in a vertical plane . Find the elapsed time from kickoff until the ball reaches its highest point . Neglect air friction . What is the highest point reached by the ball in the above question ?
Physics Kinematics Level: High School
Mechanics
A flat uniform circular disk (radius=2.00 m; mass=100 kg) is initially stationary. The disk is free to rotate in the horizontal plane about a frictionless axis perpendicular to the center of the disk. A 40 kg person, standing 1.25 m from the axis, begins to run on the disk in a circular path and has a tangential speed of 2.00 m/s relative to the ground. Find the resulting angular speed of the disk (in rad/s)a. 0.500 rad/s
b. 2.00 rad/s
c. 1.25 rad/s
d. 0.250 rad/s
e. 1.00 rad/s
Physics Kinematics Level: High School
Mechanics
A thin uniform rod is initially positioned in the vertical direction, with its lower end attached to a frictionless axis that is mounted on the floor. The rod has a length of 2.00 m and is allowed to fall, starting from rest. Find the tangential speed of the free end of the rod, just before the rod hits the floor after rotating through 90 degree.a. 3.59 m/s
b. 4.26 m/s
c. 5.89 m/s
d. 7.67 m/s
e. 6.83 m/s
