Physics Kinematics Level: High School
One dimensional
A test rocket is fired vertically upward from a well . A catapult gives it an initial speed of 80.0 m/s at ground level . Its engineers then fire and it accelerates upward at 4.00 m/s^2 until it reaches an altitude of 1000 m . at that point its engines fall and the rocket goes into free fall , with an acceleration of -9.80 m/s^2 .a) How long is the rocket in motion above the ground ?
b) What is the maximum altitude ?
c) What is its velocity just before it collides with the earth ?
(you will need to consider the motion while the engine is operating separate form the free-fall motion )
Physics Kinematics Level: High School
One dimensional
A ball is dropped from rest from a height h above the ground . Another ball is thrown vertically upwards from the ground at the instant the first ball is released . Determine the speed of the second ball if the two balls are to meet at a height h/2 about the ground .
Physics Kinematics Level: High School
One dimensional
Ms . Fetters has just learned that she won the Presidential Award for Excellence in Science Teaching . She runs to the open window and throw her red marking pen into air with an initial upward speed of 5.00 m/s .a)If the window is 12.0 m above the ground , what is the velocity of the pen 1.0 s after it is thrown ?
b) How far has the pen fallen from its starting position after 2.0 s ?
c) How long does it take the pen to hit the ground ?
d) What is the pens velocity just before it hit the ground ?
Physics Kinematics Level: High School
One dimensional
Pepe , the clown is jumping on a trampoline as Babette , the tightrope walker , above him suddenly loses her balance and falls off the tight rope straight toward Pepe . Pepe has just started upward at 15 m/s when Babette begins to fall . Pepe catches her in midair after 1.0 s .a) How far has Babette fallen when she is caught by Pepe ?
b) What is Babette’s velocity at the time of contact ?
c) What is Pepe’s velocity at the time of contact ?
d) How far above the trampoline was Babette before she fell ?
Physics Kinematics Level: High School
Projectile
A basketball player is trying to make a half-court jump shot and release the ball at the height of the basket . Assuming that the ball is launched at 51.0 degrees , 14.0 m from the basket , what speed must the player give the ball ?
Physics Kinematics Level: High School
Projectile
Diving Diverse in Acapulco dive from a cliff that is 61 m high . If the rocks below the cliff extend outward for 23 m . What is the minimum horizontal velocity a diver must have to clear the rocks ?
Physics Kinematics Level: High School
Projectile
A pitched ball is hit by a batter at a 45 degree angle and just clears the outfield fence , 98 m away . If the fence is at the same height as the pitch , find the velocity of the ball when it left the bat . Ignore air resistance .
Physics Kinematics Level: High School
Projectile
Swimming you took a running leap off a high-diving platform . You were running at 2.8 m/s and hit the water 2.6 s later . How high was the platform and how far from the edge of the platform did you hit the water ? Ignore air resistance .
Physics Kinematics Level: High School
Projectile
A dart player throws a dart horizontally at 12.4 m/s . The dart hits the board 0.32 below the height from which it was thrown . How far away is the player from the board ?
Physics Kinematics Level: High School
Projectile
A toy car runs off the edge of a table that is 1.225 m high . The car lands 0.400 m from the base of the table .a) How long did it take the car to fall ?
b) How fast was the car going on the table ?
Physics Kinematics Level: High School
Projectile
You accidentally throw your car keys horizontally at 8.0 m/s from a cliff 64-m high . How far from the base of the cliff should you look for the keys ?
Physics Kinematics Level: High School
Projectile
Suppose a football player kicks a successful field goal from a distance 36.6 m from the goalpost by giving a kick to the football on the ground at an angle of 40 degrees above the horizontal . Find the magnitude of the initial velocity of the football if it just clears the crossbar 3.05 m above the ground .
Physics Kinematics Level: High School
One dimensional
An elevator is moving downward but has a constant upward acceleration of 3.5 m/s2 . At a moment when the elevator speed is V EL = 2.35 m/s downwards , a person , standing in the elevator , releases a coin from a height of h = 1.25 m above the elevator floor .a) sketch position vs. time graph for the coin and elevator
b) how long does it take for the coin to strike the elevator floor
Physics Kinematics Level: High School
One dimensional
A soft tennis ball is dropped into a hard concrete floor from a height of 1.500 m and rebounds to height of 1.100 ma) sketch a position v.s . time graph for this process .
b) calculate ball velocity just before it hits the ground .
c) calculate ball velocity just after it leaves the floor on its way up .
d) what is the balls average acceleration during the collision with the floor , if they are in contact for 3.5 x 10(-3) seconds
Physics Kinematics Level: High School
Projectile
A boy throws a base ball with a speed of 40 m/s at an angle of 25 degrees with the horizontal . Calculatea) The maximum height reached by the ball
b) The total time is in the air (the ground is perfectly level all the way)
c) The range of the baseball
