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Motion and Forces
Page 8
Questions (1,354)
an object is thrown upwards and its height h(t) in meters after t seconds is given by the equation h(t)=1+4t-5t^2
.when the
4 answers
asked by
chrop
819 views
A novice captain is pointing his ferryboat directly across the river at a speed of 15.7 mi/h. If he does not pay attention to
4 answers
asked by
hassan yousif
946 views
Tall buildings are flexible and undergo simple harmonic motion (SMH) when excited by wind. Suppose the top floor of a skyscraper
3 answers
asked by
Andrea
746 views
how long does it take a car to change its velocity from 15m/s to 25m/s if it accelerates uniformly at 5m/s2.
4 answers
asked by
Prince
1,011 views
an airplane flies sue west at 185 km/h with respect to the air. there is a wind blowing at 85 km/h to the northeast relative to
3 answers
asked by
Katelyn
679 views
A boat is crossing a river. The velocity of the boat relative to the water is 4.0 m/s directed perpendicular to the river's
2 answers
asked by
Hannah
556 views
The stoplights on a street are designed to keep traffic moving at 34 mi/h. The average length of a street block between traffic
4 answers
asked by
Joe
782 views
A person is jumping straight up and down on a trampoline. The height of the center of mass of the person is measured every tenth
4 answers
asked by
JuanPro
777 views
The captain of a plane wishes to proceed due west. The
cruising speed of the plane is 245 m/s relative to the air. A weather
3 answers
asked by
Jrom
2,646 views
A hailstone traveling with a velocity of 43 meters/second comes to a virtual stop 0.28 seconds after hitting water. What is the
4 answers
asked by
justin
2,088 views
Initial Question: A rubber ball is dropped onto a ramp that is tilted at 20 degrees. A bounding ball obeys the "law of
3 answers
asked by
Anonymous
1,076 views
A rubber ball is dropped onto a ramp that is tilted at 20 degrees. A bounding ball obeys the "law of reflection," which says
4 answers
asked by
Anonymous
2,047 views
A motorist drives for 150 km from City A to City B in 2.5 hr. He makes the return trip in 2.0 hr. Find (a) the average speed for
2 answers
asked by
Piper
487 views
A runner is moving at a constant speed of 8.00 m/s around a circular track. If the distance from the runner to the center of the
2 answers
asked by
KT
1,114 views
1. In the following diagram, the green ball changes direction after colliding with the red ball because the red ball has more
3 answers
asked by
Chloé
1,226 views
A stationary rocket is launched vertically upward. After 4s, the rocket's fuel is used up and it is 225.6 m above the ground. At
3 answers
asked by
clement
1,202 views
A boat crosses a river of width 98.4 m
in which the current has a uniform speed of 1.84 m/s. The pilot maintains a bearing
2 answers
asked by
Treal
791 views
you are driving up a long, inclined road . after 1.20 mi you notice that signs along the roadside indicate that your elevation
4 answers
asked by
Anonymous
1,986 views
A penny is dropped from a 50 m high bridge, how fast was the penny moving when it hit the water?
2 answers
asked by
Angie
607 views
A)...If this pitch were thrown horizontally, the ball would fall .809m by the time it reached home plate, 18.3m away. The
4 answers
asked by
Hunter
1,314 views
A boat, whose speed is 1.75 m/s must aim upstream at an angle of 26.3 degrees ( with respect to a line perpendicular to the
3 answers
asked by
Izzy
1,090 views
The speed of a powerboat in still water is 35 mi/h. It is traveling on a river that flows directly south at 8 mi/h.the boat
3 answers
asked by
belkis
1,316 views
Miguel is skipping rocks across the surface of a lake. After he throws it, each stone goes through the following motions:
I. the
4 answers
asked by
Lovely Mallory
1,514 views
assume that a 50 kg skater on level ice has built up her speed to 30km/hr.how far will she coast before the sliding friction
4 answers
asked by
chingtham
1,689 views
How far does a 5-kg block with an initial speed of 3 m/s slide up a frictionless 28° incline plane?
3 answers
asked by
Amy
375 views
Two objects are connected by a light string that passes over a frictionless pulley as in the fi gure. One object lies on a
3 answers
asked by
Lindsey
2,321 views
If an object is dropped from a tall building and hits the ground 3.0 s. later, what is the magnitude of the object's
2 answers
asked by
kathryn
862 views
A bus with a vertical windshiled moves along in a rainstorm at speed V relative to the ground.
The raindrops fall vertically with
2 answers
asked by
ringo
541 views
A daredevil decides to jump a canyon. It's walls are equally high and 13 m apart. He takes off by driving a motorcycle up a
4 answers
asked by
Anonymous
1,832 views
In a stunt for an action movie, the 100 kg actor jumps from a train which is crossing a river bridge. On the river below, the
3 answers
asked by
Chris
1,074 views
A 4.0 kg mud ball drops from rest at a height of 12 m. If the impact between the ball and the ground lasts 0.30 s, what is the
2 answers
asked by
Anonymous
759 views
1. A penny is dropped from the 82nd Floor Observatory of the Empire State Building. The penny will fall from a height of 320
3 answers
asked by
ray
586 views
3 of 93 of 9 Items%0D%0A%0D%0A%0D%0A%0D%0AQuestion%0D%0ADirections: Match each type of graph to the motion it
7 answers
asked by
Latina baddie ✧
46 views
A piece of clay is stuck to the edge of a potter's wheel. Draw a diagram to show the path of the clay if it comes unstuck while
3 answers
asked by
Hala
1,030 views
1. Match the term with the correct examples and definitions. * 6 points speed velocity acceleration measurement of the distance
3 answers
asked by
mimi
51 views
Two objects with masses 5.50 and 3.00 hang 0.500 above the floor from the ends of a cord 5.70 long passing over a frictionless
3 answers
asked by
okan
404 views
Two objects (m1 = 5.15 kg and m2 = 2.75 kg) are connected by a light string passing over a light, frictionless pulley as in the
3 answers
asked by
dennis
929 views
a jogger runs with a veloicty of 6km/h (25 degrees N of W) for 35 min and then changes direction, Jogging for 20 min at 4.5km/h
3 answers
asked by
neil
1,073 views
Driving home from school one day, you spot a ball rolling out into the street (see the figure ). You brake for 1.00 , slowing
3 answers
asked by
Anonymous
1,558 views
A person dives off the edge of a cliff 40m above the surface of the sea below. Assuming that air resistance is negligible, (a)
3 answers
asked by
Tally
1,105 views
Hi... well anyways so I am in 7th grade but I'm taking 8th grade science...I think...I know for sure that I am in Accelerated
7 answers
asked by
Pate
1,629 views
2. a body of mass 20kg is released from rest t the top of a rough slope which is inclined at 30 degrees to the horizontal.six
3 answers
asked by
janell
969 views
A student drops a basketball into a pool from a height
3 answers
asked anonymously
49 views
A glider airplane is coasting horizontally when a very heavy object suddenly falls out of it.
As a result of dropping this
3 answers
asked by
Joe
1,298 views
A student drops a basketball into a pool from a height of 5 meters while a friend records the approximate splash height. They
3 answers
asked anonymously
81 views
A 200-m-wide river flows due east at a uniform speed of 4.9 m/s. A boat with a speed of 9.0 m/s relative to the water leaves the
4 answers
asked by
jr
1,425 views
1. Free-fall: A ball is thrown vertically upward. What are its velocity and acceleration when it reaches its maximum altitude?
4 answers
asked by
Aaron
856 views
A 2.15 kg book is dropped from a height of
1.8 m. a) What is its acceleration? Answer in units of m/s2.
4 answers
asked by
Shawna
324 views
If there were no air drag, how fast would drops fall from a cloud 2.4 kilometer above the Earth's surface?
answer in m/s.
3 answers
asked by
confused
1,106 views
Superwoman is hovering above the ground when a person free-falling goes by her at a terminal velocity of 140 km/h.
2 answers
asked by
Emily
995 views
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Parent Categories (18)
Classical mechanics
Dynamics
Engineering/Physics-Mechanics
Forces
Kinematics
Mechanics
Mechanics or Kinematics
Newton's Laws of Motion
Newtonian Mechanics
Physical Science
Physical Sciences
Physics
Physics and Mechanics
Physics and Sports
Science and Physics
Science/Earth Science
Science/Physics
Tennis